彗星 Comet in World Languages: ^©2007-2009 

in 111 languages

Afrikaans (Afrikaans): komeet

Albanian (Shqip): kometë

Alemannisch: Komet

Arabic: مُذَنَّب ,مذنب (muðánnab)

Armenian: գիսաստղ

Assamese: ধুমকেতু, নেজাল তৰা

Asturian (Asturianu): cometes, cometa

Aymara (Aymar): antawalla

Basque: izarka, isaɾka   http://archive.phonetics.ucla.edu/Language/EUS/eus_word-list_1973_01.html

Basque (Euskara): Kometa espazial

Belarusian (Беларуская): Камета

Bengali: কবন্ধ , kabandha

Berber (Tamazight): Asmil

Bosnian (Bosanki): Kometa

Breton (Brezhoneg): steredenn-lostek, kometenn

Bulgarian (Български): Комета

Burmese (Mranma ca/Myanmasa ): kje da̱gun, ʧè dəgù̃

Cantonese (粵語): 彗星, seui6 sing1

Catalan (Català): cometa  

Catawba (Native American): wapi`tnutu`s-sa' "star tailed", wapitnutus-sa

Cherokee/Tsalagi, tsa-la-gi ga-wo-ni-hi-is-di (Native American): a-tsi-la-tlv-da-tsi ;  pronounced as "ah chee la tluh dah chee"

Chinese (中文)(traditional): 彗星, huì xīng  (lit. broom star)

Chinese (中文)(simplified): 彗星, huì xīng  (lit. broom star)

Chinese (古文 / 文言文)(classical): 彗 huì, 孛 bèi, 彗星 huì xīng, 帚星 zhóu xīng, 妖星 yāo xīng (star of evil omen; comet)

Chorti: yuch' e k'in (comet, "falling star") http://www.utexas.edu/courses/stross/chorti/chortiy.htm

Croatian (Hrvatski): Komet

Czech (Česky): kometa 

Danish (Dansk): komet

Dutch (Nederlands): komeet 

Dhivehi: މަދުނަބު

English: comet

Esperanto (Esperanto): Kometo

Estonian (Eesti): komeet

Farsi (فارسی Persian):  ستاره دنباله دار , šahâb
Finnish (Suomi): komeetta, pyrstötähti (old, colloquial) 

Flemmish: komeet

French (Français): comète

Furlan: comete

Galician (Galego): Cometa

Georgian (ქართული): კომეტა

German (Deutsch): der Komet

Greek (Ελληνικά): κομήτης

Guarani (Avañe'ẽ): mbyja huguáiva, mbyjausuveve

Gujarati (ગુજરાતી): પૂછડિયો તારો 

Hawaiian (ʻŌlelo Hawaiʻi, Hawaiʻi): hōkū welowelo, hōkū puhipaka

Hebrew: שביט (shavyt')

Hindi (हिन्दी): पुच्छल तारा 

Hmong: Li Siea, Linqi

Hungarian (Magyar): üstökös

Icelandic (Íslenska): halastjarna 

Ido: kometo

Indonesian (Bahasa Indonesia): Komet, bintang berekor  

Interlingua: Cometa

Irish: cóiméad 

Italian (Italiano): cometa, stella cometa

Japanese (日本語): 彗星, suisei, すいせい

Korean (한국어): 혜성

Kurdish (Kumanji, Kurdî , كوردی): dûvstêrk
Laotian: ukabaht

Latin (Latīna): cometes, cometa

Latvian (Latviešu): Komēta

Lithuanian (Lietuvių): kometa
Lushai: si-mei-khu  http://dsal.uchicago.edu/cgi-bin/romadict.pl?query=comet&table=lorrain

Luxembourgish (Lëtzebuergesch): Koméit
Malagasy (Malgache): komety

Malay (Bahasa Melayu): Komet 
Maltese: kometa

Marathi (मराठी): धूमकेतु

Min-Southern (Bân-lâm-gú, 閩南語): 長尾星, simpl. 长尾星 (tn̂g-bóe-chheⁿ or tn̂g-bóe-chhiⁿ) (lit. long-haired star),

 掃帚星, simpl. 扫帚星 (sàu-chhiú-chheⁿ or sàu-chhiú-chhiⁿ), 彗星 (hūi-chheⁿ, hūi-chhiⁿ, hūi-seng)  

Mingo/Seneca (Native American): kaasyyha' (comet, meteor; lit. "it throws flames") http://www.speech.cs.cmu.edu/egads2/mingo/entry?kaasy%f6ty%e9tha%27

Mongolian (монгол хэл, mongol khel): сїїлт од
Mudnés: cumàtta

Napulitano: cuméta

Nissart: coumèta

Norwegian (‪Norsk bokmål)‬: komet

Norwegian (Norsk nynorsk)‬: komet

Old English: comēta

Old French: comete