- Aari: qaskén
- Abaza: гӏвба (ʻʷba)
- Abkhaz: ҩба (jʷba)
- Acehnese: duwa
- Adyghe: тӏу (tʷʼu)
- Afar: nammáy
- Afrikaans: twee (af)
- Aghwan: 𐕗𐕈 (ṗå), 𐕗𐔽𐔰 (ṗˁa)
- Ainu: ツ゚ㇷ゚ (tup)
- Aiton: please add this translation if you can
- Akan: abien, abieng
- Akkadian: 𒈫 (šinā)
- Aklanon: daewa
- Albanian: dy (sq)
- Aleut:
- Atka: ulax
- Attu: alax
- Eastern: aalax
- Alutiiq: mal'uk
- American Sign Language: V@Side-PalmForward
- Amharic: ሁለት (am) (hulät) (numeral: ፪ (2))
- Amuzgo: bè
- Andi: чӏегу (čʼegu)
- Arabic: اِثْنَانِ (ar) du (iṯnāni), (numeral: ٢ (2))
- Egyptian Arabic: اتنين (itnēn)
- Hijazi Arabic: اثنين (itnēn)
- Moroccan Arabic: جوج (jūj), تنين (tnīn)
- Aragonese: dos
- Aramaic:
- Assyrian Neo-Aramaic: ܬܪܹܝ m (trēy), ܬܲܪܬܹܝܢ f (tārtēyn)
- Hebrew: תרין m (trēn), תרתין f (tartēn)
- Syriac: ܬܪܝܢ m (trēn), ܬܪܬܝܢ f (tartēn)
- Western Neo-Aramaic: ܐܬܪ m (ʾeṯər), ܬܪܬ̤ f (ṯarč)
- Archi: къвеӏ (qʷʼẹ)
- Argobba: ኼት (xete)
- Armenian: երկու (hy) (erku), երկուս (erkus)
- Aromanian: doi (roa-rup)
- Asháninka: apite
- Assamese: দুই (dui) (numeral: ২)
- Asturian: dos (ast)
- Atong (India): ni
- Avar: кӏиго (kʼigo)
- Aymara: paya (ay)
- Azerbaijani: iki (az)
- Baekje: 矣毛邑 (*iterəp)
- Balinese: dadua
- Baluchi: دو
- Banjarese: dua (bjn)
- Bashkir: ике (ike)
- Basque: bi (eu)
- Bassa: sɔ̃́
- Bavarian: zwoa
- Bay Miwok: osha
- Belarusian: два (be) m (dva), (collective) дво́е (dvóje), дво́йка f (dvójka)
- Bengali: দুই (bn) (dui) (numeral: ২)
- Bhojpuri: दु (du)
- Big Nambas: iru
- Bikol Central: duwa (bcl)
- Binukid: daduwa
- Bislama: tu
- Brahui: iraŧ, ارا
- Breton: daou (br) m, div (br) f
- Brunei Malay: dua
- Budukh: кьад (qʼad)
- Buginese: dua
- Bulgarian: две (bg) (dve)
- Burmese: နှစ် (my) (hnac) (numeral: ၂ (my) (2))
- Burushaski: التݸ
- Buryat: хоёр (xojor)
- Carpathian Rusyn: два (dva)
- Catalan: dos (ca) m, dues (ca) f
- Cebuano: duha
- Cèmuhî: alo
- Central Atlas Tamazight: ⵙⵉⵏ m (sin)
- Central Dusun: duo
- Central Sierra Miwok: ˀoṭí·-
- Chakma: please add this translation if you can
- Cham:
- Eastern Cham: dua
- Western Cham: please add this translation if you can
- Chamicuro: ma'pojta
- Champenois: dous
- Chechen: шиъ (šiʔ)
- Chepang: नीस् (nis)
- Cherokee: ᏔᎵ (tali)
- Chichewa: wiri
- Chickasaw: toklo
- Chinese:
- Cantonese: 二 (yue) (ji6), 兩/两 (loeng5)
- Dungan: эр (er), лён (li͡on)
- Eastern Min: 二 (nê), 兩/两 (lâng)
- Gan: 二 (eo5)
- Hakka: 二 (ngi), 兩/两 (lióng)
- Hokkien: 二 (zh-min-nan) (jī, lī), 兩/两 (zh-min-nan) (nn̄g)
- Mandarin: 二 (zh) (èr), 兩/两 (zh) (liǎng)
- Teochew: 二 (ri6), 兩/两 (no6)
- Wu: 兩/两, 二
- Chuanqiandian Cluster Miao: lf (Dananshan Miao)
- Chukchi: ӈирэӄ (ṇirėq)
- Chuukese: ru, turu, rue-, ruechö, ruefou, ruömön
- Chuvash: иккӗ (ikkĕ), икӗ (ik̬ĕ), ик (ik)
- Cornish: dew m, diw f
- Corsican: dui (co)
- Cowlitz: sáliʔ
- Cree: nîso
- Crimean Tatar: eki
- Czech: dva (cs), dvě (cs), (collective) dvoje (cs)
- Dalmatian: doi
- Danish: to (da)
- Dena'ina: nutiha
- Dhivehi: ދޭ (dē)
- Dinka: rou
- Dolgan: икки (ikki)
- Dutch: twee (nl)
- Dzongkha: གཉིས (gnyis)
- E: sɔŋ⁵¹
- Early Modern Korean: 둟 (twulh)
- Elfdalian: twer m, twär f, tau n, twå
- Enga: lapo
- Erzya: кавто (kavto)
- Esperanto: du (eo)
- Estonian: kaks (et)
- Even: дөр (dör)
- Evenki: дюр (ʒur)
- Extremaduran: dos
- Farefare: yi, bayi
- Faroese: tveir (fo) m, tvær f, tvey n
- Fataluku: ece
- Fijian: rua (fj)
- Finnish: kaksi (fi)
- Forest Enets: щизы
- Forest Nenets: шича (šyića)
- French: deux (fr)
- Friulian: doi, dôs
- Ga: enyɔ̃, enyɔ
- Galician: dous (gl), dúas f
- Garifuna: biñá, biama, bián
- Ge'ez: ክልኤቱ m (kəlʾetu), ክልኤቲ f (kəlʾeti) (numeral: ፪ (2))
- Georgian: ორი (ka) (ori)
- German: zwei (de) (zwo (de), zween)
- Gilaki: دو (do)
- Gothic: 𐍄𐍅𐌰𐌹 (twai)
- Greek: δύο (el) (dýo)
- Ancient: δύο (dúo), β΄ (numeral)
- Greenlandic: marluk (kl)
- Guaraní: mokõi
- Gujarati: બે (gu) (be) (numeral: ૨)
- Hadza: piye m and nominal inflections; konxa and verbal inflections
- Haitian Creole: de
- Hausa: biyu (ha)
- Hawaiian: lua, ʻelua
- Hebrew: שתיים / שְׁתַּיִם (he) f (sh'táyim) (used for numbering), שניים / שְׁנַיִם (he) m (sh'náyim)
- Higaonon: daduwa
- Hiligaynon: duha
- Hindi: दो (hi) (do) (numeral: २), दुई (hi) (duī), द्वि (hi) (dvi)
- Hiri Motu: rua
- Hittite: 𒋫 (ta)
- Hlai: hlaus
- Hopi: lööyöʼ
- Hungarian: kettő (hu), két (hu)
- Hunsrik: zweu
- Iban: dua
- Icelandic: tveir (is) m, tvær (is) f, tvö (is) n
- Ido: du (io)
- Ifè: méèdzì
- Igala: èjì
- Igbo: àbụ̀ọ
- Ilocano: dua
- Indonesian: dua (id)
- Ingrian: kaks
- Interlingua: duo (ia)
- Iranun: dua
- Irish: dó (ga), (when counting objects) dhá, (when counting people) beirt
- Old Irish: dá
- Isnag: duwa
- Istriot: dui, duj
- Istro-Romanian: doi
- Italian: due (it)
- Itsekiri: meji
- Japanese: 二 (ja) (ni), 二つ (ja) (futatsu), ツー (ja) (tsū)
- Javanese: loro (jv), ro (jv), roro (jv)
- Jeju: 둘 (dul) (native), 두 (du) (native determiner), 이 (i) (Sino)
- Jersey Dutch: twî
- Kabardian: тӏу (kbd) (tʷʼu)
- Kabuverdianu: dos
- Kaingang: régre
- Kalmyk: хойр (xoyr)
- Kannada: ಎರಡು (kn) (eraḍu) (numeral: ೨ (kn) (2))
- Kanuri: indi
- Kapampangan: addua
- Karachay-Balkar: эки (eki)
- Karaim: ėki
- Karakhanid: اِكّٖى (ikkī)
- Karelian: kaksi
- Kashubian: dwa
- Kazakh: екі (kk) (ekı)
- Khakas: ікі (ìkì)
- Khinalug: кӏу (ḳu)
- Khmer: ពីរ (km) (pii) (numeral: ២ (2))
- Khoekhoe: ǀgam
- Kikuyu: ĩrĩ class 2/4/6/13, igĩrĩ class 8/10
- Kinaray-a: darwa
- Kituba: zole
- Kokborok: nwi
- Komi-Zyrian: кык (kyk)
- Kongo: zole
- Korean: 둘 (ko) (dul), (adjective) 두 (ko) (du), 이 (ko) (i), 투 (ko) (tu)
- Kumyk: эки (eki)
- Kurdish:
- Central Kurdish: دوو (dû)
- Northern Kurdish: du (ku)
- Kyrgyz: эки (ky) (eki)
- Ladakhi: གཉིས (gnyis)
- Ladin: doi
- Lak: кӏива (kʼiwa)
- Lakota: núŋpa
- Lao: ສອງ (sǭng) (numeral: ໒ (2))
- Latgalian: div
- Latin: duo (la) m or n, duae (la) f
- Latvian: divi (lv), divas
- Lezgi: кьвед (q̇ved)
- Ligurian: dui
- Lingala: míbalé
- Lisu: ꓮꓶꓸ (ɯ́)
- Lithuanian: du (lt) m, dvi (lt) f
- Livonian: kakš
- Lombard: du (lmo) m, dòe f, dô m, dò f
- Louisiana Creole French: dé, de
- Low German:
- Dutch Low Saxon: twei
- German Low German: twei
- Lycian: 𐊋𐊂𐊆 (kbi)
- Lü: ᦉᦸᧂ (ṡoang) (numeral: ᧒)
- Lushootseed: saliʔ
- Luxembourgish: zwee (lb), zwéin (lb), zwou (lb)
- Macedonian: два (mk) (dva)
- Maguindanao: duwa
- Makasar: ruwa
- Malagasy: roa (mg)
- Malay:
- Jawi: دوا (ms), دوي
- Rumi: dua (ms), dwi
- Malayalam: രണ്ടു (ml) (raṇṭu), രണ്ട് (ml) (raṇṭŭ) (numeral :൨)
- Maltese: tnejn (mt) m or f
- Manchu: ᠵᡠᠸᡝ (juwe)
- Mangarevan: rua
- Manx: daa, ghaa
- Maori: rua (mi)
- Mapudungun: epu
- Maranao: dowa
- Marathi: दोन (mr) (don) (numeral: २)
- Mari:
- Eastern Mari: кокыт (kokyt)
- Maricopa: xavik, hvik
- Marshallese: ruo
- Mauritian Creole: de
- Mbyá Guaraní: mokoĩ
- Megleno-Romanian: doi
- Mi'kmaq: dabu
- Middle English: two
- Middle Korean: 둟〯 (twǔlh)
- Milyan: 𐊗𐊂𐊆 (tbi)
- Minangkabau: duo (min)
- Mirandese: dous
- Mizo: pa-hnih
- Mòcheno: zboa
- Mon: ၜါ (ba)
- Mongolian:
- Cyrillic: хоёр (mn) (xojor)
- Mongolian: ᠬᠣᠶᠠᠷ (qoyar), ᠒ (2) (numeral)
- Montagnais: nishᵘ
- Motu: rua
- Mudburra: kujarra
- Muong: hàl
- Nahuatl: ome (nah)
- Nanai: дюэр (ʒuer)
- Nauruan: aro
- Navajo: naaki
- Naxi: ni
- Neapolitan: dùie
- Nepali: दुई (ne) (duī) (numeral: २)
- Ngazidja Comorian: -ili
- Nheengatu: mukũi
- Nigerian Pidgin: tu
- Niuean: ua
- Nivkh: менӈ (menŋ)
- North Frisian: (Mooring) twäär m tou f or n, (Föhr-Amrum, Helgoland, Sylt) tau
- North Marquesan: úa
- Northern Khanty: кӑт (kăt), (please verify) кӑтн (kătn) (Kazym)
- Northern Mansi: (please verify) китыг (kityg)
- Northern Ohlone: uṯhin
- Northern Thai: ᩈᩬᨦ, ᩈᩬᩙ
- Norwegian: to (no)
- Nuosu: ꑍ (nyip)
- O'odham: go꞉k
- Occitan: dos (oc) m, doas (oc) f
- Odia: ଦୁଇ (or) (dui) (numeral: ୨ (2))
- Ojibwe: niizh
- Okinawan: 二 (ni), 二ち (tāchi)
- Old Church Slavonic: дъва m (dŭva) (numeral: в҃)
- Old English: twēġen m, twā f or n
- Old Frisian: twā
- Old Javanese: rwa
- Old Korean: 二尸 (*TWUPUl)
- Old Turkic: 𐰚𐰃 (ki /eki/)
- Olukumi: èzì
- Orok: ду (du)
- Oromo: lama (om)
- Oscan: 𐌃𐌖𐌔 (dus)
- Ossetian: дыууӕ (dywwæ)
- Ottoman Turkish: ایكی (iki)
- Paicî: êrêilu
- Papiamentu: dos
- Pashto: دوه (ps) (dwa)
- Pennsylvania German: zwee, zvay
- Persian: دو (fa) (do) (numeral: ۲)
- Phake: please add this translation if you can
- Piedmontese: doi m, doe f
- Pijin: tu
- Pipil: ume
- Polish: dwa (pl) n
- Portuguese: dois (pt) m, duas (pt) f
- Punjabi: ਦੋ (do) (numeral: ੨ (2)), دو (do)
- Purepecha: tsimani
- Quechua: iskay (qu), iskai, işkai
- Rapa Nui: rua
- Rarotongan: rua
- Ratahan: rua
- Rawang: ní
- Rendille: lama
- Rohingya: dui
- Romagnol: du
- Romani: dui
- Kalo Finnish Romani: dui
- Romanian: doi (ro) m, două (ro) f
- Romansch: dus m, duas f
- Russian: два (ru) m or n (dva), две (ru) f (dve), дво́е (ru) (dvóje) (collective), дво́йка (ru) f (dvójka)
- S'gaw Karen: ခံ (khee)
- Saho: lamma
- Sami:
- Inari: kyehti
- Northern: guokte
- Skolt: kue´htt
- Southern: göökte
- Samoan: lua (sm)
- Sanskrit: द्वि (sa) (dvi)
- Santali: ᱵᱟᱨ (bar)
- Sarcee: ákíyi
- Sardinian:
- Campidanese: duus
- Logudorese: duos
- Saterland Frisian: two
- Scots: twa
- Scottish Gaelic: dà (before nouns), dhà (free-standing), (persons) dithis f
- Semai: due
- Serbo-Croatian:
- Cyrillic: два̑
- Roman: dvȃ
- Shan: သွင် (shn) (sǎung) (numeral: ႒)
- Sherpa: གཉིས (gnyis)
- Shor: ийги (iygi)
- Sicilian: dui (scn)
- Sidamo: lame
- Sikkimese: ཉི (nyi)
- Sindhi: ٻَه (sd) (ba)
- Sinhalese: දෙක (si) (deka)
- Slovak: dvaja, dva (sk), dve
- Slovene: dvá (sl), (when counting) dvé (sl)
- Slovincian: dwa
- Somali: laba (so), labba
- Sorbian:
- Lower Sorbian: dwa
- Upper Sorbian: dwaj (hsb) m, dwě f or n
- South Marquesan: úa
- Southern Altai: эки (eki)
- Southern Ohlone: utsgin
- Spanish: dos (es)
- Sranan Tongo: tu
- Sumerian: 𒈫 (min)
- Swahili: wili
- Swazi: bili
- Swedish: två (sv)
- Tabasaran: кьюб (q̇jub)
- Tagalog: dalawa (tl)
- Tahitian: piti, (when counting objects) rua, (when counting people) to'opiti
- Tai Dam: ꪎꪮꪉ
- Tai Laing: ꩬွꩼင်
- Tai Nüa: ᥔᥩᥒᥴ (sóang)
- Tajik: ду (tg) (du)
- Talysh: dı, (Asalemi) ده (də)
- Tamil: இரண்டு (ta) (iraṇṭu) (numeral: ௨ (ta))
- Tangut: 𗍫 (*njɨ̱¹)
- Taos: wíʼiną
- Tarantino: dò
- Tashelhit: sin m, snat f
- Tat: dü
- Tatar: ике (tt) (ike)
- Tausug: duwa
- Tedim Chin: nih
- Telugu: రెండు (te) (reṇḍu) (numeral: ౨ (te) (2))
- Ternate: romdidi
- Tetum: rua
- Thai: สอง (th) (sɔ̌ɔng) (numeral: ๒ (th) (2))
- Tibetan: གཉིས (gnyis) (numeral: ༢ (2))
- Tidore: malofo
- Tigre: ክልኦት m (kəlʾot), ክልኤ f (kəlʾe) (numeral: ፪ (2))
- Tigrinya: ክልተ (ti) (kəltä) (numeral: ፪ (2))
- Timugon Murut: duo
- Tlingit: déix̱, dáx̱náx̱
- Tocharian A: wu, we
- Tocharian B: wi
- Tok Pisin: tupela (tpi)
- Tongan: ua
- Tooro: -biri, ibiri (abstract counting)
- Tumbuka: wili
- Tupinambá: mokõî
- Turkish: iki (tr)
- Turkmen: iki (tk)
- Tuvaluan: lua
- Tuvan: ийи (iyi)
- Tz'utujil: ka’i
- Udi: пӏаъ (ṗa̱)
- Udmurt: кык (kyk)
- Ukrainian: два (uk) m (dva), дві f (dvi), дво́є (dvóje) (collective), дві́йко (dvíjko)(colloquial), дві́єчко (dvíječko) (colloquial diminutive), дві́йка (uk) f (dvíjka)
- Umbrian: 𐌕𐌖𐌚 (tuf)
- Unami: nisha
- Urdu: دو (do)
- Uyghur: ئىككى (ug) (ikki)
- Uzbek: ikki (uz)
- Venetan: do (vec), due (vec)
- Veps: kaks'
- Vietnamese: hai (vi)
- Vilamovian: cwe
- Volapük: tel (vo)
- Võro: katś
- Votic: kahs, kahsi
- Wakhi: bu
- Walloon: deus (wa)
- Waray-Waray: duha
- Welsh: dau (cy) m, dwy (cy) f
- West Frisian: twa (fy)
- Western Apache: nakih
- Western Apache: naki, nakih, nakih
- Western Bukidnon Manobo: dezuwa
- White Hmong: ob
- Winnebago: nųųp
- Wiradjuri: bula
- Wolof: ñaar (wo)
- Xhosa: bini
- Yagara: budela, burla
- Yagnobi: ду (du)
- Yakan: duwe
- Yakut: икки (ikki)
- Yámana: kampeipi
- Yao: wili
- Yiddish: צוויי (tsvey)
- Yoruba: èjì, eéjì (counting), méjì
- Yup'ik: malruk
- Zaghawa: suwi
- Zazaki: dı (diq)
- Zealandic: tweê, tweêje (in counting)
- Zhuang: ngeih, ŋeiƅ (Sawndip 二); song, soŋ (雙, 双)
- Zou: ni
- Zulu: bili
- Zuni: kwili
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