| O {particle} (a vocative particle) | :: ای /ey/, الا /alā/ |
| oak {n} (tree or shrub of the genus Quercus) | :: بلوط /balut, bolut/ |
| oak apple {n} (oak gall) SEE: oak gall | :: |
| oak gall {n} (gall produced by an oak by a wasp larva) | :: مازو /mâzu/ |
| oak titmouse {n} (Baeolophus inornatus) | :: چرخ‌ریسک بلوط |
| oak tree {n} (tree or shrub of the genus Quercus) SEE: oak | :: |
| oar {n} (implement used to row a boat) | :: پارو /pâru/ |
| oar {v} (row) SEE: row | :: |
| oasis {n} (well surrounded by fertile region) | :: واحه /vâhe/, آبادی /âbâdi/ |
| oat {n} (a widely cultivated cereal grass) | :: یولاف /yulâf/, شوفان /šufân/, جو دوسر /jov-e dosar/ |
| oath {n} (curse) SEE: curse | :: |
| oath {n} (solemn pledge) | :: سوگند /sowgand/ |
| Obama {prop} (surname) | :: اوباما /obâmâ/ |
| obedience {n} (quality of being obedient) | :: رامی /râmi/ |
| obese {adj} (extremely overweight) | :: چاق /čâq/ |
| obesity {n} (act or state of being obese) | :: چاقی /čâqi/ |
| obey {v} (to do as ordered by) | :: اطاعت کردن /etâ'at kardan/ |
| obituary {n} (brief notice of a person's death, as published in a newspaper) | :: اعلامیه فوت /e'lAmiye-ye fowt/ |
| object {n} (thing) | :: چیز /čiz/, شیء /šey'/ |
| object {n} (in grammar) | :: مفعول /maf'ul/ |
| object {n} (in object-oriented programming) | :: شیء /šey'/ |
| objective {n} (goal) | :: هدف /hadaf/ |
| objectivism {n} (doctrine that holds that reality is objective) | :: عینیت‌گرایی |
| oblast {n} (region or province) | :: ابلاست /oblâst/ |
| oblation {n} (the offering to a deity) | :: نذر /nazr/ |
| obnoxious {adj} (offensive, very annoying) | :: منفور /manfur/ |
| oboe {n} (wind instrument) | :: ابوا, قره‌نی |
| oboe d'amore {n} (instrument of the oboe family) | :: ابوا دامور /obovâ dâmore/ |
| obscene {adj} (offensive to current standards of decency or morality) | :: زشت /zesht/ |
| observatory {n} (place where celestial bodies or natural phenomena are observed) | :: رصدخانه /rasadxâne/ |
| observer {n} (one who makes observations, monitors or takes notice) | :: ناظر /nâzer/ |
| observer {n} (person sent to monitor but not to participate) | :: ناظر /nâzer/ |
| obsession {n} (compulsive or irrational preoccupation) | :: وسواس /vasvās/ |
| obstacle {n} (something that impedes, stands in the way of, or holds up progress) | :: مانع /mâne'/ |
| obstetrician {n} (a physician who specializes in childbirth) | :: دکتر زایمان /doktor-e zâyemân/, پزشک زایمان /pezešk-e zâyemân/ |
| Occam's razor {prop} (both principles) | :: تیغ اوکام /tigh Okâm/ |
| occasion {n} (favorable opportunity) | :: اکازیون /okâzion/ |
| occult {adj} (secret; hidden from general knowledge; undetected) | :: نهان /nahân/, پنهان /penhân/, مخفی /maxfi/ |
| occult {adj} (related to the occult) | :: رازآمیز /râz-âmiz/ |
| occult {n} | :: مستترکردن |
| occultation {n} (astronomical event) | :: اختفاء |
| occupant {n} (person who occupies an office or a position) | :: صاحب /sâheb/ |
| occupant {n} (owner or tenant) | :: صاحب /sâheb/, مالک /mâlek/ |
| occupation {n} (control of a country or region by a hostile army) | :: اشغال /ešğâl/ |
| occupy {v} (to occupy) SEE: consume | :: |
| ocean {n} (one of the large bodies of water) | :: اقیانوس /oqyânus/, زراه /zerāh, zarāh/ |
| Oceania {prop} (geographical region) | :: اقیانوسیه /oqyânusiye/ |
| oceanic {adj} (of or relating to the ocean) | :: اقیانوسی /oqiânusi/ |
| ochre {n} (earth pigment) | :: اخرا /oxrā/ |
| o'clock {adv} (indication of time (the translations below are of "one o’clock")) | :: ساعت یک /sâ'at yek/ |
| octagon {n} (polygon with eight sides and eight angles) | :: هشت‌ضلعی |
| octane {n} (isomeric aliphatic hydrocarbons) | :: اکتان /oktân/ |
| octane number {n} (measure of the antiknock properties of an automobile fuel) | :: عدد اکتان /'adad-e oktân/ |
| octet {n} (byte of eight bits) SEE: byte | :: |
| October {prop} (tenth month of the Gregorian calendar) | :: اکتبر /oktobr/ |
| octopus {n} (mollusc) | :: هشت‌پا /haštpâ/, اختاپوس /oxtâpus/ |
| octothorpe {n} (octothorpe) SEE: hash | :: |
| oculist {n} (ophthalmologist) SEE: ophthalmologist | :: |
| odds and ends {n} (miscellaneous things) | :: هنزر پنزر /henzer-penzer/ |
| Odesa {prop} (Odessa) SEE: Odessa | :: |
| Odessa {prop} (Ukrainian city) | :: اودسا /odesâ/ |
| odor {n} (any smell, whether fragrant or offensive; scent; perfume) | :: بو /bu/ |
| Odysseus {prop} (son of Laertes; Greek leader during the Trojan War) | :: ادیسیوس /Odisyus/ |
| Odyssey {prop} (epic poem describing the journey of Odysseus) | :: ادیسه /Odise/ |
| of {prep} (possessive genitive: belonging to) | :: ezafe (اضافه) is used, a Persian grammatical construct |
| of course {adv} (naturally) | :: البته /albate/ |
| offend {v} (to physically harm, pain) | :: آسیب زدن /âsib zadan/ |
| offend {v} (to transgress or violate a law or moral requirement) | :: تخطی /taxatti/ |
| offend {v} (to cause to sin or fall) | :: خطا کردن /xatâ kardan/ |
| offend {v} (sin) SEE: sin | :: |
| offender {n} (one who gives or causes offense) | :: مقصر /moqasser/, تقصیرکار /taqsirkâr/ |
| offender {n} (a person who commits an offense against the law) | :: خاطی /xâti/, قانون‌شکن /qânun-šekan/ |
| office {n} (room(s) or building used for non-manual work) | :: دفتر /daftar/, اداره /edâre/, آفیس /âfis/ |
| office {n} (major governmental division) | :: اداره /edâre/ |
| office hours {n} (times when office workers are at their desks) | :: ساعت کاری |
| officer {n} (one who has a position of authority in a hierarchical organization) | :: افسر /afsar/, سرکار /sarkâr/ |
| officer {n} (contraction of the term "commissioned officer") | :: افسر /afsar/ |
| offprint {n} (reproduction of an article) | :: جداچاپ /Jodāchāp/ |
| offspring {n} | :: فرزند |
| often {adv} (frequently, many times) | :: اغلب /ağlab/, بارها /bârhâ/ |
| oftenly {adv} (often) SEE: often | :: |
| Oghuz {prop} (Oghuz people) | :: اغوز /Oğuz/ |
| ogle {v} (to stare flirtatiously) | :: چشم‌چرانی کردن /čašm-čarâni kardan/ |
| ogle {n} (an impertinent, flirtatious, amorous or covetous stare) | :: زل /zol/ |
| oh {interj} (expression of surprise) | :: اه /oh/, آه, آه |
| oh dear {interj} (expression of dismay, concern, worry or disapproval) | :: !ای وای |
| Ohio {prop} (U.S. state) | :: اوهایو |
| oh my God {interj} (excitement or shock) | :: وای خدای من, ای خدا |
| oi {interj} (exclamation to get attention) SEE: hey | :: |
| oil {n} (liquid fat) | :: روغن /rowğan/ |
| oil {n} (petroleum-based liquid) | :: نفت /naft/ |
| oiler {n} (oil well) SEE: oil well | :: |
| oiler {n} (ship) SEE: oil tanker | :: |
| oil tanker {n} (Ship) | :: نفتکش /naft-keš/ |
| oil well {n} (hole drilled into the earth from which petroleum is pumped) | :: چاه نفت /čâh-e naft/ |
| ointment {n} (viscous preparation, usually containing medication) | :: پماد /pomâd/, مرهم /marham/ |
| OK {n} (endorsement; approval) | :: باشه /bâše/, اوکی /okey/ |
| OK {interj} (acknowledgement or acceptance) | :: باشه /bâše/ |
| okra {n} (edible capsules of A. esculentus) | :: بامیه |
| old {adj} (of an object, concept, etc: having existed for a relatively long period of time) | :: قدیمی /qadimi/, دیرین /dirin/ , کهن /kohan/, کهنه /kohne/ |
| old {adj} (of a living being: having lived for relatively many years) | :: پیر /pir/, کهنسال /kohansâl/, مسن /mosen/, زرمان /zarmān/ |
| old {adj} (former) | :: قدیمی /qadimi/, قبلی /qabli/, پیشین /pišin/, سابق /sâbeq/ |
| old {adj} (having existed or lived for the specified time) | :: ساله /sâle/ |
| old {adj} ((of an item) used, not new) | :: کهنه /kohne/ |
| old age {n} (latter part of life) | :: پیری /piri/, زرمان /zarmân/ , کهنسالی /kohansâli/ |
| old boy {n} (alumnus) SEE: alumnus | :: |
| Old Delhi {prop} (capital of the Mughal Empire) | :: شاه جهان آباد /Šâh-e-Jahân-âbâd/ |
| Old English {prop} (ancestor language of modern English) | :: انگلیسی قدیم /engelisi qadim/ |
| Old French {prop} (French language from 9th to the early 14th century) | :: فرانسوی قدیم /Farânsavi-ye qadim/ |
| Old Iranian {prop} (languages directly descended from Proto-Iranian) | :: ایرانی باستان /irâni-ye bâstân/ |
| old man {n} (elderly man) | :: پیرمرد /pir-e-mard/ |
| Old Persian {prop} (Translations) | :: فارسی باستان /fârsi-ye bâstân/, فارسی قدیم /fârsi-ye qadim/ |
| Old Testament {prop} (first half of the Christian Bible) | :: عهد عتیق /'Ahd-e 'Atiq/ |
| old-timer {n} (one who has been around for a long time or has a great deal of experience) | :: قدیمی /qadimi/ |
| old wine in a new bottle {n} (existing concept or institution presented as if new) | :: ارایه ایده ای کهنه در لباسی نو |
| old woman {n} (elderly woman) | :: پیرزن /pir-e-zan/ |
| oleaginous {adj} (falsely or affectedly earnest; persuasively suave) | :: چرب‌زبان /charb-zabân/ |
| oleaster {n} (plant in the family Elaeagnaceae, especially, a plant in the genus Elaeagnus, especially, the species Elaeagnus angustifolia) | :: سنجد /sinjid/ |
| oleic acid {n} (fatty acid with 18 carbon atoms and one double bond, found in olive oil) | :: اولئیک اسید /ole'ik asid/ |
| olfaction {n} (the sense of smell) | :: بویایی |
| oligarchy {n} (Government by only a few) | :: الیگارشی /oligârši/ |
| oligarchy {n} (Those who make up an oligarchic government) | :: جرگه‌سالاران (jarge-salaran) |
| olinguito {n} (mammal) | :: اولینگیتو /olingito/ |
| olive {n} (fruit) | :: زیتون /zeytun/ |
| olive {n} (colour) | :: رنگ زیتونی /rang zaitūni/, زیتونی /zeytōni/ |
| olive {n} (olive tree) SEE: olive tree | :: |
| olive-backed sunbird {n} (Cinnyris jugularis) | :: شهدخوار پشت‌زیتونی |
| olive oil {n} (oil pressed from olives) | :: روغن زیتون |
| Oliver {prop} (male given name) | :: الیور /Oliver/ |
| olive tree {n} (tree that produces olives) | :: زیتون /zeytun/ |
| olivetta {n} (container for olives) | :: زیتوندان |
| Olivia {prop} (female given name) | :: اولیویا /oliviyâ/ |
| Olivier salad {n} (traditional Russian salad of boiled vegetables with mayonnaise) | :: سالاد الیویه /sâlâd âlîvyah/ |
| Olympic Games {prop} (international multi-sport event inspired by the ancient festival, see also: Olympics) | :: بازی‌های المپیک /Bâzi-hâ-ye Olampik/ |
| Olympics {prop} (sport event, see also: Olympic Games) | :: المپیک /olampik/ |
| Olympus {prop} (mountain) | :: المپ /Olimp/ |
| Oman {prop} (country in the Middle East) | :: عمان /'ommân/ |
| omasum {n} (the third part of the stomach of a ruminant) | :: هزارلا |
| ombudsman {n} (official who investigates complaints) | :: دادآور /dâd-âvar/ |
| omega {n} (letter of the Greek alphabet) | :: امگا /omegâ/ |
| omelette {n} (dish made with beaten eggs) | :: املت /omlet/ |
| omen {n} (something which portends or is perceived to portend a good or evil event or circumstance in the future; an augury or foreboding) | :: مروا /morvā/, فال /fāl/, مرغوا /morγvā/ |
| omertà {n} (code of silence amongst members of the Mafia or other criminal organization) | :: اومرتا /omertâ/ |
| omni- {prefix} (all) | :: ویسپ /visp/ |
| omniscient {adj} (having total knowledge) | :: آگاه از همه چیز, ویسپ آگاه /visp-âgâh/ |
| Omsk {prop} (large city in Russia) | :: امسک |
| on {adj} (in the state of being active, functioning or operating) | :: روشن /rowšan/, فعال /faʿʿâl/ |
| on {adv} (to an operating state) | :: روشن /rowšan/ |
| on {prep} (positioned at the upper surface of) | :: روی /ru-ye/, بر /bar/ |
| on {prep} (covering) | :: روی /ru-ye/ |
| on {prep} (at the date of) | :: در /dar/ |
| on {prep} (some time during the day of) | :: در /dar/ |
| on {prep} (dealing with the subject of) | :: در /dar/, اندر /andar/ |
| on {prep} (touching; hanging from) | :: روی /ru-ye/ |
| on {prep} (paid for by) | :: با /bâ/ |
| on {prep} (used to indicate means or medium) | :: در /dar/ |
| on board {adv} (aboard) SEE: aboard | :: |
| once {adv} (one and only one time) | :: یک‌بار /yek-bâr/ |
| once {adv} (as soon as) SEE: as soon as | :: |
| once again {adv} (one more time) | :: یک بار دیگر /yek bâr-e digar/ |
| once more {adv} (one more time) SEE: once again | :: |
| once upon a time {adv} (traditional beginning of children’s stories, especially fairy tales) | :: روزی روزگاری /ruzi ruzegâri/, یکی بود یکی نبود /yeki bud yeki nabud/, روزی از روزها /ruzi az ruz-hâ/ |
| one {pron} (impersonal pronoun) | :: _ه /-e/ |
| one {pron} (indefinite personal pronoun) | :: آدم /âdam/, یکی /yeki/, کسی /kasi/ |
| one {n} (neutral element in multiplication) | :: واحد /vâhed/ |
| one {n} (digit or figure) | :: یک /yek/ |
| one {adj} (of a period of time) | :: یک /yek/, ـی /-i/ |
| one {adj} (a single, unspecified thing) | :: هر /har/ |
| one {adj} (sole, only) | :: تنها /tanhâ/ |
| one {adj} (whole, entire) | :: واحد /vâhed/ |
| one {adj} (in agreement) | :: موافق /movâfeq/ |
| one {adj} (the same) | :: یک /yek/ |
| one {adj} (being an unknown person with the specified name) | :: ـی /-i/, یک ...ـی /yek ...-i/ |
| one {num} (ordinal number) SEE: first | :: |
| one {num} (cardinal number 1) | :: یک /yek/ |
| one and a half {num} (one and a half) | :: یکی و نصف /yeki o nesf/, یک و نیم /yek o nim/ |
| one by one {adv} (individually) | :: یکی یکی /yeki yeki/, یک‌به‌یک /yek-be-yek/ |
| one for all, all for one {phrase} (motto: working for each other) | :: یکی برای همه، همه برای یکی |
| one hundred {num} (cardinal number 100) SEE: hundred | :: |
| one hundred percent {adj} (complete, total) | :: صددرصد /sad-darsad/ |
| one hundred percent {adv} (completely, totally) | :: صددرصد /sad-darsad/ |
| one million {num} (cardinal number 1000000) SEE: million | :: |
| one moment, please {phrase} (one moment please) | :: یک لحظه صبر کنید |
| one o'clock {n} (the start of the second hour) | :: ساعت یک /sâ'at yek/ |
| oneself {pron} | :: خود /xud, xod/, نفس /nafs/ |
| one thousand {num} (cardinal number 1000) SEE: thousand | :: |
| on foot {prep} (walking, jogging, running) | :: پیاده /pyâde/ |
| on ice {prep} (performed by ice skaters as an ice show) | :: روی یخ /ruye-yax/ |
| onion {n} (Allium cepa) | :: پیاز /piyâz/, سوخ /sōx/ |
| onlooker {n} (spectator, bystander) SEE: spectator | :: |
| only {adj} (alone in a category) | :: تنها /tanhâ/ |
| only {adj} (singularly superior; the best) | :: تنها /tanhâ/ |
| only {adv} (without others or anything further; exclusively) | :: فقط /faqat/ |
| only {adv} (no more than) | :: فقط /faqat/ |
| only {adv} | :: همین /hamin/ |
| only {n} (only child) SEE: only child | :: |
| only child {n} (person who has no siblings) | :: تک‌فرزند /tak-farzand/ |
| onomatopoeia {n} (word that sounds like what it represents) | :: نام‌آوا /namava/ |
| on purpose {prep} (purposely, with intention) | :: عمدا /'amdan/, از قصد /az qasd/, دانسته /dâneste/ |
| Ontario {prop} (Province in eastern Canada) | :: انتاریو |
| on the one hand {prep} (from one point of view) | :: از یک سو /az yek su/ |
| on the other hand {prep} (from another point of view) | :: از طرف دیگر /az taraf-e digar/ |
| on the tip of one's tongue {prep} (known but not quite remembered) | :: دانستن چیزی ولی فراموشی موقتی آن |
| on your mark, get set, go {phrase} (three-command start of racing) | :: بجای خود،آماده، حرکت! |
| onyx {n} (a banded variety of chalcedony) | :: عقیق سلیمانی /aqiq-e soleymâni/ |
| oofless {adj} (poor) SEE: poor | :: |
| Oort Cloud {prop} (cloud of comets in the Solar System) | :: ابر اورت /abr-e Urt/ |
| ooze {v} (to secrete or slowly leak) | :: زهیدن /zehidan/, تراویدن /tarâvidan/ |
| ooze {v} (to give off a sense of (something)) | :: تراویدن /tarâvidan/ |
| opal {n} (a mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity) | :: اپال /opāl/ |
| OPEC {prop} (Organization of Petroleum Exporting Countries) | :: اوپک /opek/ |
| open {adj} (not closed) | :: باز /bâz/ |
| open {adj} (prepared to conduct business) | :: باز /bâz/ |
| open {v} (to make something accessible) | :: گشودن /gošudan/, باز کردن /bâz kardan/ |
| open {n} (sports event) | :: اوپن |
| opener {n} (bottle opener) SEE: bottle opener | :: |
| opener {n} (can opener) SEE: can opener | :: |
| Open Game {n} | :: گشایش باز |
| open sesame {phrase} (open up) | :: سسمی باز شو /sesemi bâz šov/ |
| opera {n} (theatrical work) | :: اپرا /operâ/ |
| operating system {n} (software which controls computer) | :: سیستم عامل /sistem âmel/ |
| operating theatre {n} (room in a hospital used for performing surgery) | :: اتاق عمل /otâq-e 'amal/ |
| operation {n} (surgical procedure) | :: جراحی /jarrâhi/ |
| operation {n} (procedure for generating a value from one or more other values) | :: عمل /'amal/ |
| operation {n} (military campaign) | :: عملیات /amaliyât/ |
| operator {n} (telecommunications operator) | :: اپراتور /operātor/, تلفنچی /telefonči/ |
| operator {n} (mathematical operator) | :: عملگر /'amalgar/ |
| ophthalmologist {n} (eye specialist) | :: چشم‌پزشک /češm-pezešk/ |
| ophthalmology {n} (eye medicine) | :: چشم‌پزشکی /češm-pezeški/ |
| opinion {n} (thought a person has formed about a topic) | :: نظر /nazar/, عقیده /aqide/, رأی /ra'y/, فکر /fekr/ |
| opium {n} (drug from opium poppy) | :: افیون /afyun/ |
| opium poppy {n} (Papaver somniferum) | :: خشخاش /xašxâš/, نارکوک /nārkuk/ |
| opopanax {n} (gum from the root of Opopanax chironium or what is equal) | :: گاوشیر {m} /gâwšir/ |
| opossum {n} (marsupial of the Didelphidae) | :: صاریغ /sâriğ/ |
| opponent {n} | :: حریف /harif/, هماورد /hamâvard/ |
| opportunist {n} (someone who takes advantage of any opportunity) | :: فرصت طلب /forsat-talab/, اپورتونیست /oportunist/ |
| opportunity {n} (chance for advancement, progress or profit) | :: فرصت /forsat/ |
| opportunity {n} | :: فرصت /forsat/ |
| opposite {adj} (located directly across from) | :: ضد |
| opposite {prep} (across from) | :: درمقابل |
| opposite sex {n} (the other gender to which one is referring) | :: جنس مخالف /jens-e moxâlef/ |
| opposition {n} (politics: party or movement opposed to government) | :: اپوزیسیون /opozisiyon/, مخالفت /moxâlefat/ |
| optics {n} (physics of light and vision) | :: نورشناسی /nur-šenâsi/ |
| optimism {n} (a tendency to expect the best) | :: خوش‌بینی /xoš-bini/ |
| optimistic {adj} (expecting a good outcome) | :: خوش بین, خوش بینانه |
| optional {adj} (not compulsory) | :: اختیاری /extiyâri/ |
| or {conj} (conjunction) | :: یا /yâ/ |
| oral {adj} (relating to the mouth) | :: دهانی /dahâni/ |
| oral sex {n} (stimulation of the genitals using the mouth) | :: سکس دهنی /seks-e dahani/ |
| orange {n} (tree) | :: نارنج /nâranj/, پرتقال /porteqâl/ |
| orange {n} (fruit) | :: نارنج /nâranj/, پرتقال /porteqâl/, مالته /mâlte/ |
| orange {n} (colour) | :: نارنجی /nâranji/ |
| orange {adj} (having the colour of the fruit of an orange tree) | :: نارنجی /nârenji/ |
| orange blossom {n} (white flower of the orange tree) | :: بهارنارنج /bahâr-nârenj/, گل‌بهار /gol-bahâr/ |
| orb {n} (period of time marked off by the revolution of a heavenly body) SEE: year | :: |
| orb {n} (circle) SEE: circle | :: |
| orb {n} (orbit) SEE: orbit | :: |
| orbit {n} (path of one object around another) | :: مدار /madâr/ |
| orc {n} (Orcinus orca) SEE: orca | :: |
| orca {n} (Orcinus orca) | :: ارکا /orkâ/ |
| orchestra {n} (large group of musicians who play together on various instruments) | :: ارکستر /orkestr/ |
| order {n} (arrangement, disposition) | :: ترتیب /tartib/, نظام /nezâm/ |
| order {n} (good arrangement) | :: ردیف /radif/ |
| order {n} (command) | :: ارد /ord/, دستور /dastur/, فرمان /farmân/, امر /amr/, حکم /hokm/ |
| order {n} (request for some product or service) | :: سفارش /sefâreš/, اردر /order/ |
| order {n} (awarded decoration) | :: نشان /nešân/ |
| order {n} (biology: taxonomical classification) | :: راسته /rāste/ |
| order {v} (to issue a command) | :: فرمودن /farmudan/ |
| order {v} (to request some product or service) | :: سفارش دادن /sefâreš dâdan/ |
| ordinary {adj} (normal, routine) | :: عادی /'âdi/ |
| ordinary {adj} (Having no special characteristics or function; everyday, common, mundane) | :: ساده /sâde/ |
| ordure {n} (dirt, filth) SEE: dirt | :: |
| ore {n} (rock that contains materials that can be economically extracted and processed) | :: معدن /ma'dan/, سنگ معدن /sang-e ma'dan/ |
| oregano {n} (plant) | :: پونه کوهی |
| Oregon {prop} (northwestern state of the United States of America) | :: اورگن |
| or else {phrase} (as an alternative) | :: وگرنه /vagarna/ |
| Orenburg {prop} (city in Russia) | :: ارنبورگ /Orenburg/ |
| organ {n} (part of an organism) | :: اندام /andâm/, عضو /ozv/ |
| organ {n} (musical instrument) | :: ارگ /org/, ارغنون /arğanun/ |
| organ {n} (official magazine, newsletter, or similar publication) | :: ترجمان /tarjomān/ |
| organise {v} (organize) SEE: organize | :: |
| organised {adj} (organized) SEE: organized | :: |
| organism {n} (living thing) | :: سازواره /sâzvâre/ |
| organization {n} (group of people or other legal entities with an explicit purpose and written rules) | :: سازمان /sâzmân, sâzemân/, تشکیلات /taškilât/ |
| organize {v} (to arrange in working order) | :: سامان دادن /sâmân dâdan/ |
| organized {adj} (characterised by efficient organization) | :: ارگانیزه /orgānize/ |
| orgasm {n} (the peak of sexual pleasure) | :: اوج لذت جنسی /oj lezat jensi/, ارگاسم /orgâsm/ |
| orgulous {adj} (threatening, dangerous) | :: خطرناک |
| Orient {prop} (countries of Asia) | :: شرق /Šarq/ |
| oriental plane {n} (a tree; Platanus orientalis) | :: چنار /čenâr/ |
| Oriental Republic of Uruguay {prop} (official name of Uruguay) | :: جمهوری شرقی اوروگوئه |
| orifice {n} (orifice (see anus etc. for specific body cavities)) SEE: hole | :: |
| origami {n} (the Japanese art of paper folding) | :: اریگامی /origâmi/ |
| original {adj} (first in a series) | :: اصلی /asli/, اریژینال /orižinâl/ |
| Orion's Belt {prop} (bright asterism) | :: کمربند شکارچی /kamarband sekarci/ |
| Ormus {prop} (kingdom) | :: هرمز |
| ornament {n} (element of decoration) | :: آذین /âzin/ |
| ornithologist {n} (expert in ornithology) | :: پرنده‌شناس |
| ornithology {n} (scientific study of birds) | :: پرنده‌شناسی /parande-šenâsi/ |
| Orodes {prop} (any of several kings) | :: ارد /Orod/, اورودس /Orodes/ |
| Orontes {prop} (river in Western Asia) | :: عاصی /âsi/ |
| Orontes {prop} (the name of any one of a number of ancient Armenian kings) | :: اروند /arvand/ |
| orphan {n} (person whose (parent or) parents have died) | :: یتیم /yatim/ |
| orphanage {n} (a residential institution for the care and protection of orphans) | :: یتیم‌خانه /yatim-xâne/ |
| orphanarium {n} (orphanage) SEE: orphanage | :: |
| orpiment {n} (arsenic trisulphide) | :: زرنیخ /zarnix/, اورپیمان /orpimân/ |
| orthodox {adj} (conforming to accepted, established, or traditional doctrines of a given faith, religion, or ideology) | :: ارتدکس /ortodoks/ |
| Orthodox {adj} (of the Orthodox Churches) | :: ارتدکس /ortodoks/ |
| Orthodox {adj} (of Orthodox Judaism) | :: ارتدکس /ortodoks/ |
| Orthodox Church {n} (the Eastern body of Christendom) | :: کلیسای ارتدکس /kelisâ-ye ortodoks/ |
| orthodoxy {n} (correctness in doctrine and belief) | :: ارتدکسی |
| orthography {n} (study of correct spelling) | :: املا /emlâ/ |
| Orwell {prop} (surname) | :: اورول |
| Orwellian {adj} (of or relating to Orwell, especially his dystopian novels) | :: اورولی |
| oryx {n} (antelope) | :: تیزشاخ /tizshãkh/ |
| Oscar {prop} (male given name) | :: اسکار /oskar/ |
| oscillation {n} (the act of oscillating) | :: نوسان /navasân/ |
| oscillator {n} (an electronic circuit used to generate a continuous output waveform) | :: نوسانگر /navasângar/ |
| Oshnavieh {prop} (city in West Azerbaijan Province) | :: اشنویه /Ošnaviye, Ošnuye/ |
| Oslo {prop} (Oslo (a county and municipality, the capital city of Norway)) | :: اسلو /Oslo/ |
| osmium {n} (chemical element) | :: اسمیم /osmiyom/ |
| osmosis {n} (movement of molecules) | :: تراران /osmoz/ |
| osseous {adj} (relating to bone) | :: استخوانی /ostoxâni/ |
| Ossetia {prop} (region in the Caucasus) | :: اوستیا /Osetiyâ/ |
| Ossetian {adj} (pertaining to Ossetia) | :: اوستیایی /osetiyâyi/ |
| Ossetian {n} (member of the people) | :: آسی /âsi/ |
| Ossetian {prop} (language) | :: آسی /âsi/, اوستی /oseti/ |
| ostensibly {adv} (ostensibly) | :: به ظاهر |
| osteoporosis {n} (bone disease) | :: پوکی استخوان /puki-ye ostoxân/ |
| ostrich {n} (large flightless bird) | :: شترمرغ /šotormorğ/ |
| otaku {n} (one with an obsessive interest in something such as anime or manga) | :: اتاکو /otâku/ |
| other {adj} (not the one previously referred to) | :: دیگر /digar/ |
| other {adj} | :: دیگر /digar/ |
| others {n} (other people) | :: دیگران {p} /digarân/, بقیه {p} /baqiye/ |
| otherwise {adv} (in all other respects) | :: در غیر این صورت /dar ğeyr-e in surat/ |
| otherwise {adv} (or else) SEE: or else | :: |
| Ottawa {prop} (capital of Canada) | :: اتاوا /otâvâ/ |
| otter {n} (mammal) | :: سمور آبی /samur-e âbi/ |
| Ottoman Empire {prop} (Turkish empire) | :: امپراتوری عثمانی /emperâturi 'osmâni/ |
| Ottoman Turkish {prop} (the variety of the Turkish language that was used as the administrative and literary language of the Ottoman Empire) | :: ترکی عثمانی /torki-ye 'osmâni/ |
| Ouagadougou {prop} (capital of Burkina Faso) | :: اوآگادوگو /ovâgâdugu/ |
| ouch {interj} (expression of one's own physical pain) | :: آخ /âx/, آی /ây/ |
| oud {n} (Arabic plucked string instrument) | :: عود /'ud/ |
| ought {v} (indicating duty or obligation) | :: باید /bāyad/ |
| ought {v} (indicating advisability or prudence) | :: بهتر بودن /behtar budan/, باید /bāyad/ |
| ought {v} (indicating likelihood or probability) | :: باید /bāyad/ |
| our {determiner} (belonging to us) | :: ما /mâ/ |
| ouroboros {n} (a serpent, dragon or worm who eats its own tail) | :: اوروبروس |
| outbreak {n} (an eruption, sudden appearance) | :: شیوع /šoyu'/ |
| outbreak {n} (a sudden increase) | :: شیوع /šoyu'/ |
| outdo {v} (to go beyond) | :: بهتر انجام دادن از کسی دیگر |
| outer space {n} (region) | :: فضای بیرونی /fazâ-ye biruni/ |
| outline {n} (general description of some subject) | :: شمای کلی |
| out of it {prep} (drunk) SEE: drunk | :: |
| out of sight, out of mind {proverb} (something not nearby is forgotten) | :: از دل برود هر آنکه از دیده برفت /az del beravad har ânke az dide beraft/ |
| out of work {prep} (unemployed) SEE: unemployed | :: |
| output {n} (data sent out of the computer) | :: برونداد /borundâd/ |
| output {v} (produce or create) | :: فرآوردن, تولید |
| output {v} (send data to out of a computer) | :: بروندادن, برونداد |
| outside {n} (outer surface) | :: بیرون /birun/, خارج /xârej/ |
| outside {adv} (in or to the outside) | :: بیرون /birun/ |
| outside {adv} (outdoors) | :: بیرون /birun/ |
| outskirts {n} (the edges or areas around a city or town) | :: حوالی /havâli/ |
| outsourcing {n} (transfer business) | :: برون‌سپاری /borun-sepâri/ |
| ovary {n} (female organ) | :: تخم‌دان /toxm-dân/ |
| oven {n} (chamber used for baking or heating) | :: تنور /tanur/ |
| ovenbird {n} (Seiurus auricapilla) | :: مرغ تنورساز |
| overcoat {n} (garment) | :: پالتو /pâlto/ |
| overheat {v} (overheat) SEE: burn | :: |
| overmorrow {adv} (on the day after tomorrow) SEE: day after tomorrow | :: |
| overmorrow {n} (day after tomorrow) SEE: day after tomorrow | :: |
| over my dead body {prep} (absolutely not) | :: مگر از روی جسد من رد بشی /magar az ruye jasad-e man rad beši/ |
| overnourished {adj} (overweight) SEE: overweight | :: |
| oversight {n} (overview) SEE: overview | :: |
| overthrow {v} (to bring about the downfall of) | :: سرنگون کردن /sarnegun kardan/, برانداختن /barandâxtan/ |
| overture {n} (musical introduction) | :: پیش‌نوا /piš-navâ/, اوورتور /uvertur/ |
| overview {n} (brief summary, as of a book or a presentation) | :: نمای کلی |
| overweight {n} (excess of weight) | :: اضافه‌وزن /ezâfe-vazn/ |
| ovum {n} (gamete) | :: تخمک /toxmak/ |
| owe {v} (to be under an obligation) | :: مدیون بودن /madyun budan/, بدهکار بودن /bedehkâr budan/ |
| owe {v} (to be in debt) | :: بدهکار بودن /bedehkâr budan/ |
| owl {n} (bird) | :: جغد /joğd/, بوف /buf/ |
| own {v} (defeat) SEE: defeat | :: |
| owner {n} (one who owns) | :: صاحب /sâheb/, مالک /mâlek/ |
| ox {n} (any bovine animal used as a beast of burden) | :: گاو /gâv/, ورزا /varzâ/, برزگاو /barzagâv/ |
| oxcart {n} (cart drawn by ox) | :: گاری /gâri/ |
| Oxford {prop} (city) | :: آکسفورد |
| oxgoad {n} (goad for driving oxen) | :: گوازه /gavāza/, گاوزنه /gâvzane/ |
| oxide {n} (binary compound of oxygen) | :: اکسید /oksid/ |
| oxime {n} (chemical compound) | :: اکسیم |
| oxygen {n} (chemical element) | :: اکسیژن /oksižen/ |
| oxygen {n} (molecular oxygen) | :: اکسیژن /oksižen/ |
| oxygen {n} (atom of oxygen) | :: اکسیژن /oksižen/ |
| oxymel {n} | :: سکنگبین /sekangabin, sekangubin/, سرکنگبین /serkangabin, serkangubin/, سکنجبین /sekanjabin/ |
| oyster {n} (mollusk, see also: clam; mollusc; mussel) | :: گوشماهی /gušmâhi/, شسن /šasn/ |
| oyster {n} (food) | :: گوشماهی /gušmâhi/, اویستر /oyster/ |
| oy vey {interj} (oh dear) | :: ای وای /ey vāy/ |
| ozone {n} (O3) | :: ازن /ozon/ |
| ozone layer {n} (a region of the stratosphere) | :: لایهٔ اوزون /lâye-ye ozon/ |