kilo-

From French, kilo- irregularly derived from Ancient Greek χίλιοι (khílioi, “one thousand”). The etymologically "correct" form would be chili- or chilo-, resulting in forms such as chiliasme (“chiliasm”) or chilopode (“centipede”); but the French, when creating the prefix, had to avoid a possible (standard) pronunciation of chi as /ʃi/, too close to the vulgar verb chier.

kilo-

2. In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by a thousand (1000).

   Alternative form: k- (symbol)

   Synonym: chilia-

   Antonym: milli-

4. (computing, deprecated) Synonym of kibi- (“multiplying the unit to which it is attached by 2¹⁰ = 1024”).

   Synonyms: Ki-, ki-

• The usage of kilo- as a 1024x multiplier in computing (i.e., to mean kibi-) is obsolete, but many people continue to use it this way.

• “kilo-”, in OneLook Dictionary Search.

• Ilok, Loki

kilo-

1. kilo-

• FGJSSH: Fjalor i gjuhës së sotme shqipe ‎, 1980

kilo-

1. kilo-

• “kilogramo”, in Euskaltzaindiaren Hiztegia (in Basque), Euskaltzaindia

• quilo-

Borrowed from French kilo-, from Ancient Greek χίλιοι (khílioi, “thousand”).

kilo-

1. kilo- (SI prefix expressing 10³ of the base unit)

• The letter k is not normally used in Catalan. Instead, Catalan orthography calls for using the qu digraph to represent the /k/ sound before an e or an i. Therefor, when the metric system was introduced into Catalan, the prefix kilo- was originally spelled quilo-. With the advent of k as a standard international abbreviation, usage of kilo- has become not only acceptable, but also more common than the traditional spelling. However, traditionalists still insist upon the use of quilo-.

• “kilo-”, in Diccionari de la llengua catalana (in Catalan), second edition, Institute of Catalan Studies , April 2007
• “kilo-”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2025
• “kilo-” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.

• IPA^(key):

kilo-

1. kilo-

• “kilo-”, in Slovník spisovného jazyka českého (in Czech), 1960–1971, 1989
• kilo- in Slovník afixů užívaných v češtině, 2017

kilo-

1. kilo-

• “kilo-” in Den Danske Ordbog

Dutch Wikipedia has an article on:

kilo (SI-prefix)

Wikipedia ^nl

From French kilo-.

• Audio:

  (file)

kilo-

1. kilo-

• “kilogram” in Van Dale Onlinewoordenboek, Van Dale Lexicografie, 2007.

• IPA^(key): /ˈkilo/
• Rhymes: -ilo
• Hyphenation: ki‧lo

kilo-

1. kilo-

• kilogramo in Fundamento de Esperanto by L. L. Zamenhof, 1905

kilo-

1. kilo-

• “kilo-”, in Eesti keele seletav sõnaraamat (in Estonian) (online version), Tallinn: Eesti Keele Sihtasutus (Estonian Language Foundation), 2009

Internationalism, from French kilo-, ultimately from Ancient Greek χίλιοι (khílioi, “one thousand”).

• IPA^(key): /ˈkilo-/,

kilo-

1. kilo-

• “kilo-”, in Kielitoimiston sanakirja ‎ (in Finnish) (online dictionary, continuously updated), Kotimaisten kielten keskuksen verkkojulkaisuja 35, Helsinki: Kotimaisten kielten tutkimuskeskus (Institute for the Languages of Finland), 2004–, retrieved 1 July 2023

• Koli, loki, olki

See English kilo-.

• Audio:

  (file)

kilo-

1. kilo-

• “kilo-”, in Trésor de la langue française informatisé , 2012.

kilo-

1. kilo-

• “kilo-” in Duden online
• “kilo-” in Digitales Wörterbuch der deutschen Sprache

• IPA^(key):
• Hyphenation: ki‧lo

kilo-

1. (noun prefix) kilo-

   ‎kilo- + ‎méter (“meter”) → ‎kilométer (“kilometer”)

• kilométer in Hungarian–English dictionary at SZTAKI

kilo-

1. kilo-

• kilogram-o in Ido-English Dictionary by L.H. Dyer, 1924

Borrowed from Russian кило- (kilo-).

• (Ala-Laukaa) IPA^(key): /ˈkilo-/,
• (Soikkola) IPA^(key): /ˈkilo-/,

kilo-

1. kilo-

kilo-

1. (sciences) kilo-

   Synonym: (in more general usage) chilo-

• kilo- in Dizionario Italiano Olivetti, Olivetti Media Communication

kilo-

1. kilo-

• kilo- at tezaurs.lv

kilo-

1. kilo-

• “kilometras”, in Lietuvių kalbos žodynas , lkz.lt, 1941–2025

kilo-

1. kilo-

• “kilo-” in The Bokmål Dictionary.

kilo-

1. kilo-

• “kilogram” in The Nynorsk Dictionary.

Borrowed from French kilo-, from Ancient Greek χίλιοι (khílioi, “thousand”).

• IPA^(key): /ki.lɔ/

• Audio:

  (file)

• Rhymes: -ilɔ
• Syllabification:

kilo-

1. kilo-

• kilo- in Polish dictionaries at PWN

kilo-

1. alternative spelling of quilo-

kilo-

1. kilo-

• “kilo-”, in DEX online—Dicționare ale limbii române (Dictionaries of the Romanian language) (in Romanian), 2004–2025

kilo-

1. kilo-

• “kilo-”, in Hrvatski jezični portal (in Serbo-Croatian), 2006–2025

kilo-

1. kilo-

• “kilo-”, in Slovníkový portál Jazykovedného ústavu Ľ. Štúra SAV (in Slovak), https://slovnik.juls.savba.sk, 2003–2025

• IPA^(key): /kíːlɔ/

kȋlo-

1. kilo-

• “kilo-”, in Slovarji Inštituta za slovenski jezik Frana Ramovša ZRC SAZU (in Slovene), 2014–2025

kilo-

1. kilo-

• “kilo-”, in Diccionario de la lengua española (in Spanish), online version 23.8, Royal Spanish Academy , 10 December 2024

kilo-

1. kilo-

• kilo- in Svenska Akademiens ordbok (SAOB)

• olik

kilo-

1. kilo-

• “kilogram”, in Turkish dictionaries, Türk Dil Kurumu