| Öland {prop} (island) | :: Eyland {n} |
| oak {n} (tree or shrub of the genus Quercus) | :: eik {f}, eikitré {n}, eiki {n} |
| oak {n} (wood) | :: eik {f} |
| oaken {adj} (made from the wood of an oak) | :: eikinn {m} |
| oak tree {n} (tree or shrub of the genus Quercus) SEE: oak | :: |
| oar {n} (implement used to row a boat) | :: ár {f} |
| oar {v} (row) SEE: row | :: |
| oasis {n} (well surrounded by fertile region) | :: vin {f} |
| oat {n} (a widely cultivated cereal grass) | :: hafri {m} |
| oath {n} (curse) SEE: curse | :: |
| oath {n} (solemn pledge) | :: eiður {m} |
| oatmeal {n} (meal) | :: haframjöl {n} |
| oatmeal {n} (breakfast cereal, see also: porridge) | :: hafragrautur |
| Obadiah {prop} (book of the Old Testament) | :: Óbadía {m} |
| obedient {adj} (willing to comply with commands) | :: hlýðinn |
| obesity {n} (act or state of being obese) | :: offita {f} |
| obituary {n} (brief notice of a person's death, as published in a newspaper) | :: minning |
| object {n} (thing) | :: hlutur {m} |
| object {n} (in grammar) | :: andlag {n}, andl. {n} |
| object {v} (disagree with something or someone) | :: mótmæla, malda í mórinn, mæla á móti |
| object code {n} (output of a compiler or assembler) | :: viðfangskóði {m}, viðfangskóti {m}, vélamálskóði {m} |
| objection {n} (act of objecting) | :: andmæli {n-p}, mótbára {f} |
| objective function {n} (mathematical function) | :: kostnaðarfall {n}, viðfangsfall {n} |
| object language {n} (lexicography: language of headwords) | :: umfjöllunarmál |
| object-oriented {adj} (using entities called objects) | :: hlutbundinn {m}, viðfanga- |
| object-oriented programming {n} (programming paradigm that uses objects to design application and computer programs) | :: hlutbundin forritun {f} |
| oblique case {n} (any noun case except the nominative (and vocative)) | :: aukafall {n} |
| oblong {adj} (longer than wide) | :: ílangur |
| oboe {n} (wind instrument) | :: óbó {n} |
| oboe d'amore {n} (instrument of the oboe family) | :: ástaróbó {n} |
| observation wheel {n} (Ferris wheel) SEE: Ferris wheel | :: |
| observe {v} (to notice, to watch, see also: notice) | :: skoða |
| obsession {n} | :: þráhyggja {f} |
| obsessive-compulsive disorder {n} (form of anxiety) | :: áráttu-þráhyggjuröskun {f} |
| obsidian {n} (a type of black glass produced by volcanoes) | :: hrafntinna {f} |
| obsolete {adj} (no longer in use) | :: úreltur {m} |
| obtuse {adj} (intellectually dull) | :: sljór, tregur |
| obtuse {adj} (deadened, muffled, muted) | :: daufur |
| obviously {adv} (in an obvious manner; clearly apparent) | :: augljóslega |
| ocarina {n} (musical instrument) | :: okkarína {f} |
| Occam's razor {prop} (both principles) | :: rakhnífur Ockhams {m} |
| occlusive {n} (plosive) SEE: plosive | :: |
| occultation {n} (astronomical event) | :: stjörnumyrkvi |
| occupy {v} (have (taken) control of) | :: hernema |
| OCD {n} (obsessive-compulsive disorder) SEE: obsessive-compulsive disorder | :: |
| ocean {n} (one of the large bodies of water) | :: haf {n}, sjór {m}, ægir {m} , úthaf {n} |
| Oceania {prop} (geographical region) | :: Eyjaálfa |
| ocean sunfish {n} (Mola mola) | :: tunglfiskur {m} |
| ocellus {n} (simple eyes consisting of a single lens) | :: depilauga {n} |
| ochlocracy {n} (government by the masses) | :: skrílræði {n} |
| octagon {n} (polygon with eight sides and eight angles) | :: átthyrningur {m} |
| octagonal {adj} (shaped like an octagon) | :: átthyrndur |
| octahedron {n} (a polyhedron with eight faces) | :: áttflötungur {m} |
| octane {n} (isomeric aliphatic hydrocarbons) | :: oktan {n} |
| octangular {adj} (octagonal) SEE: octagonal | :: |
| octave {n} (interval) | :: áttund {f} |
| octet {n} (rare: byte of three bits) | :: áttund {f}, átta bita bæti {n} |
| octet {n} (byte of eight bits) SEE: byte | :: |
| October {prop} (tenth month of the Gregorian calendar) | :: október {m}, októbermánuður {m} |
| octonion {n} (nonassociative extension of a quaternion) | :: áttundatala {f} |
| octopus {n} (mollusc) | :: kolkrabbi {m} |
| oculist {n} (ophthalmologist) SEE: ophthalmologist | :: |
| odalisque {n} (a female harem slave) | :: ódalíska |
| odd {adj} (indivisible by two) | :: odda-, ójafn, hvass |
| odd function {n} (function) | :: oddstætt fall {n} |
| Odense {prop} (City in southern Denmark) | :: Óðinsvé {n-p} |
| Odin {prop} (god in Norse mythology) | :: Óðinn {m} |
| odor {n} (any smell, whether fragrant or offensive; scent; perfume) | :: lykt {f} |
| Odysseus {prop} (son of Laertes; Greek leader during the Trojan War) | :: Ódysseifur {m} |
| Odyssey {prop} (epic poem describing the journey of Odysseus) | :: Ódysseifskviða {f} |
| Oedipus {prop} (son of Laius and Jocasta) | :: Ödípús {m} |
| oesophagectomy {n} (removal of all or part of the esophagus) | :: vélindisúrnám {n} |
| oesophagus {n} (the tube that carries food from the pharynx to the stomach) | :: vélinda {n} |
| of course {adv} (naturally) | :: auðvitað, að sjálfsögðu, náttúrulega |
| offend {v} (sin) SEE: sin | :: |
| office {n} (room(s) or building used for non-manual work) | :: skrifstofa {f} |
| office hours {n} (prearranged time when a person is available) | :: viðtalstími {m} |
| offline {adj} (of a system, not connected to a larger network) | :: ótengdur {m} |
| off one's own bat {prep} (of one's own accord) SEE: of one's own accord | :: |
| offside {adj} (in an illegal position ahead of the ball) | :: rangstæður |
| offside {n} (offside play) | :: rangstaða {f} |
| off the rails {prep} (in an abnormal manner) | :: út af sporinu |
| of one's own accord {prep} (without being commanded or controlled) | :: af sjálfsdáðum, óbeðinn, sjálfviljugur |
| often {adv} (frequently, many times) | :: oft, ósjaldan, iðulega, oftlega, títt, þrá- |
| oftenly {adv} (often) SEE: often | :: |
| oh {interj} (expression of surprise) | :: ó |
| ohm {n} (the derived unit of electrical resistance) | :: óm |
| oh my God {interj} (excitement or shock) | :: Guð minn góður |
| oil {n} (liquid fat) | :: olía {f} |
| oiler {n} (ship) SEE: oil tanker | :: |
| oil shale {n} (shale from which hydrocarbons can be produced) | :: olíuleirsteinn {m} |
| oil stove {n} (a stove for heating or cooking powered by paraffin/kerosene) | :: prímus {m} |
| oil tanker {n} (Ship) | :: olíuskip |
| OK {n} (endorsement; approval) | :: í lagi |
| OK {adj} (all right, permitted) | :: allt í lagi, ókei |
| OK {interj} (acknowledgement or acceptance) | :: ókei |
| Olaf {prop} (male given name) | :: Ólafur |
| old {adj} (of an object, concept, etc: having existed for a relatively long period of time) | :: gamall |
| old {adj} (of a living being: having lived for relatively many years) | :: gamall |
| Old English {prop} (ancestor language of modern English) | :: fornenska |
| Old English Sheepdog {n} (a breed of herding dog) | :: gamli enski fjárhundur {m} |
| old-fashioned {adj} (outdated or no longer in vogue) | :: gamaldags |
| old-fashioned {adj} (preferring the customs of earlier times) | :: gamaldags |
| old folks' home {n} (nursing home) SEE: nursing home | :: |
| old habits die hard {proverb} (established habits are difficult to change) | :: það er erfitt að kenna gömlum hundi að sitja |
| Old High German {prop} (Old High German) | :: fornháþýska {f} |
| Old Low German {prop} (Old Saxon) SEE: Old Saxon | :: |
| oldness {n} (state of being old) | :: elli {f} |
| Old Norse {prop} (language of Scandinavia before 1400 CE) | :: norræna, fornnorræna {f} |
| Old Norwegian {prop} (the Old Norse language of Norway) | :: fornnorska {f} |
| old people's home {n} (nursing home) SEE: nursing home | :: |
| Old Saxon {n} (the Old Saxon language) | :: fornsaxneska {f} |
| Old Testament {prop} (first half of the Christian Bible) | :: Gamla testamentið {n} |
| oleate {n} (salt or ester) | :: óleat {n} |
| oleic acid {n} (fatty acid with 18 carbon atoms and one double bond, found in olive oil) | :: olíusýra {f} |
| oligonucleotide {n} (a short sequence of nucleotides) | :: fákirni {n} |
| olive {n} (fruit) | :: ólífa {f} |
| olive oil {n} (oil pressed from olives) | :: ólífuolía {f} |
| Oliver {prop} (male given name) | :: Óliver {m} |
| olivine {n} (family of minerals forming orthorhombic crystals) | :: ólivín {n} |
| Olympic Games {prop} (international multi-sport event inspired by the ancient festival, see also: Olympics) | :: Ólympíuleikar {m-p} |
| Oman {prop} (country in the Middle East) | :: Óman {n} |
| omega {n} (angular velocity) SEE: angular velocity | :: |
| omnibus {n} (vehicle) | :: strætó {m} |
| omnidirectional {adj} (in every direction) | :: fjölstefnu- |
| omnifarious {adj} (of all forms) | :: af öllu tagi, alls kyns |
| omnipotence {n} (unlimited power) | :: almætti {n} |
| omnipotent {adj} (having unlimited power, force or authority) | :: almáttugur |
| Omnipotent {prop} (God) | :: almáttugur Guð {m} |
| omnipresence {n} (the ability to be at all places at the same time) | :: alnánd {f} |
| omnipresent {adj} (being everywhere) | :: alls staðar nálægur |
| omniscience {n} (capacity to know everything) | :: alviska {f} |
| omniscient {adj} (having total knowledge) | :: alvitur |
| omnivore {n} (animal eating both plants and meat) | :: alæta {f} |
| omophagia {n} (the eating of raw food) | :: hrákjötsát {n} |
| on {prep} (positioned at the upper surface of) | :: á |
| on {prep} (some time during the day of) | :: á |
| on air {prep} (transmitting live) | :: þetta er |
| on all fours {adv} (on hands and knees) | :: á fjórum fótum |
| once {adv} (one and only one time) | :: einu sinni |
| once {adv} (formerly) | :: einu sinni |
| once {adv} (as soon as) SEE: as soon as | :: |
| once again {adv} (one more time) | :: einu sinni enn, á nýjan leik, að nýju |
| once bitten, twice shy {proverb} (one is cautious in the future if hurt in the past) | :: brennt barn forðast eldinn |
| once more {adv} (one more time) SEE: once again | :: |
| once upon a time {adv} (traditional beginning of children’s stories, especially fairy tales) | :: einu sinni var, það var einu sinni |
| oncology {n} (branch of medicine) | :: æxlafræði {f} |
| one {num} (ordinal number) SEE: first | :: |
| one {num} (cardinal number 1) | :: einn |
| one-eyed {adj} (having only a single eye) | :: eineygður, eineygur |
| one for all, all for one {phrase} (motto: working for each other) | :: eitt fyrir alla, allir fyrir eitt |
| one-handed {adv} (having only one hand) | :: einhentur |
| one hundred {num} (cardinal number 100) SEE: hundred | :: |
| one hundred and one {num} (one hundred plus one, see also: one hundred one) | :: hundrað og einn {m}, eitthundrað og einn {m} |
| one hundred and one {n} (figure 101) | :: hundrað og einn {m}, eitthundrað og einn {m} |
| oneiric {adj} (resembling a dream; dreamlike) SEE: dreamlike | :: |
| one-legged {adj} (having only one leg) | :: einfættur |
| one million {num} (cardinal number 1000000) SEE: million | :: |
| one-night stand {n} (sexual encounter) | :: einnar nætur gaman {n}, skyndikynni {n-p} |
| one o'clock {n} (the start of the second hour) | :: klukkan eitt |
| ones' complement {n} | :: einundafyllitala {f}, einundafylling {f} |
| one's days are numbered {phrase} (some period of time is coming to an end) | :: dagar hans eru taldir , dagar hennar eru taldir , dagar þess eru taldir , dagar þeirra eru taldir |
| one-sided {adj} (having only one side) | :: einhliða {m} |
| one thousand {num} (cardinal number 1000) SEE: thousand | :: |
| one up {v} (do something slightly better than a competitor) | :: bera af, skara fram úr, reka á stampinn |
| one-way street {n} (road in which traffic is only allowed to proceed in one direction) | :: einstefnugata {f} |
| one-way ticket {n} (a ticket granting permission to travel to a place but not back) | :: aðra leið |
| on foot {prep} (walking, jogging, running) | :: ganga, fótgangandi |
| onion {n} (Allium cepa) | :: laukur {m} |
| onion dome {n} (onion-shaped dome) | :: næpa {f}, laukturn {m} |
| online {adj} | :: tengdur {m} |
| onlooker {n} (spectator, bystander) SEE: spectator | :: |
| only {adj} (alone in a category) | :: eini {m}, eina {f} {n}, einu {m-p} {f-p} {n-p} |
| only {adv} (without others or anything further; exclusively) | :: aðeins |
| only {adv} (no more than) | :: bara |
| only {n} (only child) SEE: only child | :: |
| only-begotten {adj} (being the only child of one’s parent) | :: eingetinn |
| only child {n} (person who has no siblings) | :: einbirni {n}, einkabarn {n} |
| onomastics {n} (branch of lexicology devoted to the study of names) | :: nafnfræði {f} |
| onomatopoeia {n} (property of a word of sounding like what it represents) | :: hljóðgerving {f} |
| onomatopoeia {n} (word that sounds like what it represents) | :: hljóðlíkingarorð {n}, hljóðgervingur {m} |
| on one's high horse {prep} (self-righteous) | :: setja sig á háan hest, gera sig merkilegan {m} |
| on purpose {prep} (purposely, with intention) | :: viljandi, af ásettu ráði, að yfirlögðu ráði, vísvitandi |
| on sale {prep} (available for purchase) | :: til sölu |
| on sale {prep} (available for purchase at reduced prices) | :: á útsölu, á útsöluverði |
| on the air {prep} (in the process of recording or broadcasting) SEE: on air | :: |
| on the contrary {prep} (opposite) | :: þvert á móti |
| on the double {prep} (rapidly or immediately) | :: eins og skot |
| on the other hand {prep} (from another point of view) | :: hins vegar |
| onto {prep} (upon; on top of) | :: ofan á, á |
| ontology {n} (study of being) | :: verufræði {f} |
| onus {n} (burden of proof) | :: sönnunarbyrði {f} |
| onus probandi {n} (duty of a party in a legal proceeding) SEE: burden of proof | :: |
| on your mark, get set, go {phrase} (three-command start of racing) | :: tilbúinn, viðbúinn, af stað {m}, tilbúin, viðbúin, af stað {f} |
| oocyte {n} (cell that develops into egg or ovum) | :: eggfruma {f} |
| oofless {adj} (poor) SEE: poor | :: |
| oology {n} (study of birds' eggs) | :: eggjafræði {f} |
| oops {interj} (acknowledging a minor mistake) | :: úps, æ, obbosí |
| opal {n} (a mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity) | :: ópall {m} |
| opaque {adj} (hindering light to pass through) | :: ógagnsær |
| open {adj} (not closed) | :: opinn |
| open {v} (to make something accessible) | :: opna |
| openable {adj} (that can be opened) | :: opnanlegur |
| opener {n} (can opener) SEE: can opener | :: |
| Open Game {n} | :: opið tafl |
| opening hours {n} (the regular times of day when a shop is open) | :: opnunartími {m} |
| open one's big mouth {v} (speak when it would be better to stay silent) | :: vera kjaftaskur |
| opera {n} (theatrical work) | :: ópera {f} |
| opera house {n} (theatre for opera) | :: óperuhús {n} |
| operand {n} (quantity to which an operator is applied) | :: þolandi {m} |
| opera singer {n} (someone who sings opera professionally) | :: óperusöngvari {m}, óperusöngkona {f} |
| operating system {n} (software which controls computer) | :: stýrikerfi {n}, stjórnkerfi {n} |
| operation {n} (method by which a device performs its function) | :: starf {n}, vinnsla {f} |
| operation {n} (method or practice by which actions are done) | :: starfsemi {f}, starfræksla {f}, rekstur {m}, framkvæmd {f} |
| operation {n} (surgical procedure) | :: aðgerð {f}, uppskurður {m}, skurðaðgerð {f} |
| operation {n} (procedure for generating a value from one or more other values) | :: aðgerð {f} |
| operation {n} (military campaign) | :: aðgerð {f}, hernaðaraðgerð {f} |
| operator {n} (mathematical operator) | :: virki {m} |
| ophthalmologist {n} (eye specialist) | :: augnlæknir {m} |
| ophthalmology {n} (eye medicine) | :: augnlæknisfræði {f} |
| opiate {n} (drug, hormone or other substance derived from or related to opium) | :: ópíöt {m} |
| opinion {n} (thought a person has formed about a topic) | :: álit |
| opium {n} (drug from opium poppy) | :: ópíum {n} |
| opium {n} (anything that numbs or stupefies) | :: ópíum {n} |
| opossum {n} (marsupial of the Didelphidae) | :: pokarotta {f} |
| opponent {n} | :: andstæðingur {m}, mótherji {m} |
| opportune {adj} (suitable) | :: heppilegur |
| optative {n} (optative) | :: óskháttur {m} |
| optical fibre {n} (fibre used for transmitting light) | :: ljósleiðari {m} |
| optical illusion {n} (image that is visually deceptive or misleading) | :: sjónvilla |
| optician {n} (a person who makes or sells lenses, spectacles) | :: sjóntækjafræðingur, gleraugnabúð |
| optic nerve {n} (nerve) | :: sjóntaug {f} |
| optics {n} (physics of light and vision) | :: ljósfræði {f}, sjónfræði {f} |
| optimum {n} (the best or most favorable condition) | :: kjörgildi {n}, besta gildi {n}, kjörstaða {f} |
| optional {adj} (not compulsory) | :: valfrjáls |
| or {conj} (conjunction) | :: eða |
| oracle {n} (shrine to prophetic deity) | :: véfrétt {f} |
| oracle {n} (priest through whom deity provides prophecy or advice) | :: spáprestur {m}, goðsvari {m} |
| oracle {n} (prophetic response) | :: véfrétt {f}, goðsvar {n} |
| oracle {n} (person who is a source of wisdom) | :: spakvitringur {m} |
| oral {adj} (spoken) | :: munnlegur |
| orally {adv} (by mouth) | :: munnlega |
| orally {adv} (spoken) | :: munnlega |
| oral sex {n} (stimulation of the genitals using the mouth) | :: munnmök {n-p} |
| orange {n} (tree) | :: appelsínutré {n} |
| orange {n} (fruit) | :: appelsína {f} |
| orange {n} (colour) | :: appelsínugulur |
| orange {adj} (having the colour of the fruit of an orange tree) | :: appelsínugulur {m} |
| orange blossom {n} (white flower of the orange tree) | :: appelsínublóm {n} |
| orange juice {n} (juice of squeezed oranges) | :: appelsínusafi {m} |
| oratorio {n} (a musical composition on a religious theme) | :: óratóría {f} |
| orb {n} (period of time marked off by the revolution of a heavenly body) SEE: year | :: |
| orb {n} (circle) SEE: circle | :: |
| orc {n} (evil monstrous humanoid creature) | :: orki {m} |
| orc {n} (Orcinus orca) SEE: orca | :: |
| orca {n} (Orcinus orca) | :: háhyrningur {m} |
| Orcadian {adj} (from the Orkney Islands) | :: orkneyskur |
| Orcadian {n} (someone from the Orkney Islands) | :: Orkneyingur {m} |
| orchestra {n} (large group of musicians who play together on various instruments) | :: hljómsveit {f}, orkestur {n} |
| order {n} (arrangement, disposition) | :: röð {f} |
| order {n} (request for some product or service) | :: pöntun {f} |
| order {n} (biology: taxonomical classification) | :: ættbálkur {m} |
| order {v} (to issue a command) | :: skipa |
| order {v} (to request some product or service) | :: panta |
| orderly {adj} (neat; tidy; possessing order) | :: skipulegur {m}, reglulegur {m} |
| ordinal number {n} | :: raðtala {f} |
| ore {n} (rock that contains materials that can be economically extracted and processed) | :: málmgrýti |
| oregano {n} (plant) | :: óriganó {m} |
| or else {phrase} (as an alternative) | :: annars, ella |
| Oresund {prop} (strait) | :: Eyrarsund {n} |
| Oresund Bridge {prop} (bridge) | :: Eyrarsundsbrúin {f} |
| organ {n} (part of an organism) | :: líffæri {n} |
| organ {n} (musical instrument) | :: orgel {n} |
| organ {n} (official magazine, newsletter, or similar publication) | :: málgagn {n} |
| organelle {n} (a membrane bound compartment found within cells) | :: frumulíffæri {n} |
| organic {n} (organic compound) SEE: organic compound | :: |
| organic chemistry {n} (chemistry of carbon containing compounds) | :: lífræn efnafræði {f} |
| organic compound {n} (carbon containing covalent compound) | :: lífrænt efnasamband {n} |
| organise {v} (organize) SEE: organize | :: |
| organism {n} (living thing) | :: lífvera {f} |
| organist {n} (musician who plays the organ) | :: orgelleikari {m}, organisti {m} |
| organization {n} (group of people or other legal entities with an explicit purpose and written rules) | :: samtök {n-p} |
| organize {v} (to arrange in working order) | :: skipuleggja |
| orgy {n} (sexual group activity) | :: orgía {f} |
| oriental pratincole {n} (Glareola maldivarum) | :: svölutrítill |
| orienteering {n} (racing across unfamiliar place using a map and compass) | :: ratleikur {m} |
| orifice {n} (orifice (see anus etc. for specific body cavities)) SEE: hole | :: |
| orifice {n} (mouth or aperture, as of a tube, pipe) | :: op {n}, munnur {m} |
| origami {n} (the Japanese art of paper folding) | :: origami {n} |
| original {n} (object from which all later copies and variations are derived) | :: frumeintak {n}, orginall {m}, frumrit {n} |
| original sin {n} (state of sinfulness in each human) | :: erfðasynd {f} |
| Orkney Islands {prop} (group of islands) | :: Orkneyjar {f-p} |
| ornithology {n} (scientific study of birds) | :: fuglafræði {f} |
| orphan {n} (person whose (parent or) parents have died) | :: munaðarleysingi {m} |
| orphanage {n} (a residential institution for the care and protection of orphans) | :: munaðarleysingjahæli {n} |
| orphanarium {n} (orphanage) SEE: orphanage | :: |
| Orthodox Church {n} (the Eastern body of Christendom) | :: Rétttrúnaðarkirkjan {f} |
| orthodoxy {n} (correctness in doctrine and belief) | :: rétttrúnaður {m} |
| orthography {n} (study of correct spelling) | :: réttritun {f} |
| orthonormality {n} (The condition of being orthonormal) | :: staðalþverlægni {f} |
| orthonormalization {n} (Form of orthogonalization in which the resulting vectors are all unit vectors) | :: þverstöðlun {f} |
| orthorexia {n} (obsession with healthy food) | :: rétt matarlyst |
| Orwell {prop} (surname) | :: Orwell |
| osier {n} (plant) | :: körfuvíðir {m} |
| Oslo {prop} (Oslo (a county and municipality, the capital city of Norway)) | :: Ósló {f} |
| osmium {n} (chemical element) | :: osmín |
| osmosis {n} (movement of molecules) | :: himnuflæði |
| osprey {n} (bird of prey) | :: gjóður {m} |
| ossuary {n} (a place where the dead are buried) | :: beinabúr, beinaklefi, beinahús |
| osteo- {prefix} (bone) | :: bein- |
| osteogenesis {n} (the formation and development of bone) | :: beinmyndun {f} |
| osteopenia {n} (the medical condition of having low bone density, but not low enough to be considered osteoporosis) | :: beinrýrð |
| osteoporosis {n} (bone disease) | :: beinþynning |
| ostracism {n} (banishment, exclusion from community) | :: útskúfun {f} |
| ostrich {n} (large flightless bird) | :: strútur |
| other {n} (an other one) | :: annar {m}, önnur {f}, annað {n} |
| other {determiner} (not the one referred to) | :: annar |
| otherwise {adv} (differently, in another way) | :: öðruvísi, annars vegar, á annan veg, á annan hátt |
| otherwise {adv} (under different circumstances) | :: annars, að öðrum kosti, ella, ellegar, endranær |
| otherwise {adv} (in all other respects) | :: að öðru leyti, annars |
| otherwise {adj} (other than supposed) | :: á annan veg, annars vegar |
| otherwise {adv} (or else) SEE: or else | :: |
| otitis media {n} (inflammation of the middle ear) | :: hljóðholsbólga {f}, miðeyrabólga {f} |
| otolaryngologist {n} (otorhinolaryngologist) SEE: otorhinolaryngologist | :: |
| otorhinolaryngologist {n} (medical doctor of ear, nose and throat) | :: háls- nef- og eyrnalæknir {m} |
| otter {n} (mammal) | :: otur {m} |
| Otto {prop} (male given name) | :: Ottó {m} |
| Ottoman Empire {prop} (Turkish empire) | :: Tyrkjaveldi {n}, Ottómanveldið {n}, Ósmanska ríkið {n} |
| Ouagadougou {prop} (capital of Burkina Faso) | :: Ouagadougou |
| Ouija {n} (a board with letters of the alphabet and "yes" and "no") | :: andaglas {n} |
| our {determiner} (belonging to us) | :: okkar, vor |
| outdoor {adj} (situated in the open air) | :: útivistar- |
| outdoors {adv} (in the open air) | :: úti, utandyra, utanhúss, undir berum himni |
| outer space {n} (region) | :: útgeimur {m} |
| outlaw {n} (a fugitive from the law) | :: útlagi {m} |
| outlaw {v} (to declare illegal) | :: útlægja |
| outlaw {v} (to place a ban on) | :: útlægja |
| out of date {prep} (too old to be used) | :: úreltur {m} |
| out of date {prep} (not conforming to current fashion) | :: úreltur {m} |
| out of it {prep} (drunk) SEE: drunk | :: |
| out of place {prep} (not in the proper situation) | :: passar ekki |
| out of sight {adj} (not accessible to view) | :: ekki sjáanleg |
| out of sight {adj} (in hiding) | :: úr augnsýn |
| out of sight {adj} (superb) | :: ótrúlega flott |
| out of sorts {adj} (irritable or somewhat unwell) | :: vera illa fyrir kallaður, vellulegur |
| out of the blue {prep} (unexpectedly) | :: (like thunder from a clear sky) eins og þruma úr heiðskíru lofti, (like the devil from the sheep's leg) eins og skrattinn úr sauðaleggnum, sem reiðarslag, eins og þruma úr heiðríkju, öllum að óvörum |
| out of the frying pan, into the fire {prep} (get from an already bad situation to a worse one) | :: úr öskunni í eldinn (out of the ashes into the fire) |
| out of the question {adj} (not remotely possible) | :: út úr kortinu |
| out of tune {prep} (not in correct musical pitch) | :: hjáróma |
| out of work {prep} (unemployed) SEE: unemployed | :: |
| outskirt {n} (periphery) | :: útjaðar {m} |
| outstandingly {adv} (in an outstanding manner) | :: ágætlega |
| ovarian follicle {n} (cellular aggregation) | :: eggbú {n} |
| ovary {n} (female organ) | :: eggjastokkur |
| ovation {n} (prolonged enthusiastic applause) | :: fagnaðarlæti {n-p}, hylling {f}, lófatak {n} |
| oven {n} (chamber used for baking or heating) | :: ofn {m} |
| ovenbird {n} (Seiurus auricapilla) | :: kollskríkja |
| oven glove {n} (glove designed to carry hot oven trays) | :: ofnhanski {m} |
| oven mitt {n} (oven glove) SEE: oven glove | :: |
| over {adj} (ended) | :: búinn |
| over {prep} (physical positioning: on top of; above) | :: yfir |
| overcoat {n} (garment) | :: yfirhöfn {f} |
| overdraft {n} (act of overdrawing a bank account) | :: yfirdráttur {m} |
| overdraught {n} (overdraft) SEE: overdraft | :: |
| overdraw {v} (withdraw more money from an account than there is credit) | :: yfirdraga |
| overestimated {v} (overrated) SEE: overrated | :: |
| overfit {v} (statistics: to use a statistical model that has too many parameters) | :: ofmáta |
| overheat {v} (overheat) SEE: burn | :: |
| overlord {n} (a ruler of other rulers) | :: lénsdrottinn {m}, lénsherra {m} |
| 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) | :: fyrr skal ég dauður liggja |
| overnice {adj} (excessively nice) | :: from úr hófi vandlátur {m}, from úr hófi vandlát {f}, from úr hófi vandlátt {n}; allt of vandfýsinn {m}, allt of vandfýsin {f}, allt of vandfýsið {n} |
| overrate {v} (to esteem too highly) | :: ofmeta |
| overrated {adj} (rated too highly) | :: ofmetinn {m}, ofmetin {f}, ofemtið {n} |
| oversleep {v} (to sleep for longer than planned) | :: sofa yfir sig |
| over-the-counter {adj} (pharmacy: not requiring a prescription) | :: ólyfseðilsskyldur |
| over there {adv} (in that place) | :: þarna fyrir handan, yfrum |
| overtone {n} (harmonic) | :: yfirtónn {m} |
| overwhelming {adj} (overpowering) | :: feikilegur |
| overwrite {v} (destroy old data) | :: skrifa yfir |
| ovulation {n} (release of an ovum from the ovary) | :: egglos {n} |
| ovum {n} (gamete) | :: eggfruma {f}, egg {n} |
| owl {n} (bird) | :: ugla {f} |
| own {v} (defeat) SEE: defeat | :: |
| own {v} (have rightful possession of) | :: eiga |
| owner {n} (one who owns) | :: eigandi {m} |
| own goal {n} (goal scored by player against their own team) | :: sjálfsmark {n} |
| oxbow lake {n} (crescent-shaped lake) | :: bjúgvatn |
| oxide {n} (binary compound of oxygen) | :: oxíð {n} |
| oxidoreductase {n} (enzyme that catalyzes redox reactions) | :: oxídóredúktasi {m} |
| oxygen {n} (chemical element) | :: súrefni {?} |
| oxymoron {n} (figure of speech) | :: refhvörf {n-p} |
| oxymoron {n} (contradiction in terms) SEE: contradiction in terms | :: |
| oyster {n} (mollusk, see also: clam; mollusc; mussel) | :: ostra {f} |
| oystercatcher {n} (bird) | :: tjaldur {m} |
| oyster plant {n} (Mertensia maritima) SEE: sea bluebell | :: |
| ozone {n} (O3) | :: óson {n} |
| ozone layer {n} (a region of the stratosphere) | :: ósonlagið {n} |
| Øresund {prop} (strait) SEE: Oresund | :: |