- Afrikaans: neef (af) (male cousin or nephew), niggie (af) (female cousin or niece)
- Arabic: اِبْن عَمّ m (ibn ʕamm) (FBS), بِنْت عَمّ f (bint ʕamm) (FBD), اِبْن عَمَّة m (ibn ʕamma) (FZS), بِنْت عَمَّة f (bint ʕamma) (FZD), اِبْن خَال m (ibn ḵāl) (MBS), بِنْت خَال f (bint ḵāl) (MBD), اِبْن خَالَة m (ibn ḵāla) (MZS), بِنْت خَالَة f (bint ḵāla) (MZD)
- Armenian: զարմիկ (hy) (zarmik) (male), զարմուհի (hy) (zarmuhi) (female)
- Aromanian: cusurin (roa-rup) m, ver m
- Assyrian Neo-Aramaic: ܒܲܪ ܥܲܡܵܐ m (bar ˁammā) (FBS), ܒܲܪ݇ܬ ܥܲܡܵܐ f (bat ˁammā) (FBD), ܒܲܪ ܥܲܡܬܵܐ m (bar ˁamtā) (FZS), ܒܲܪ݇ܬ ܥܲܡܬܵܐ f (bat ˁamtā) (FZD), ܒܲܪ ܚܵܠܵܐ m (bar ḥālā) (MBS), ܒܲܪ݇ܬ ܚܵܠܵܐ f (bat ḥālā) (MBD), ܒܲܪ ܚܵܠܬܵܐ m (bar ḥāltā) (MZS), ܒܲܪ݇ܬ ܚܵܠܬܵܐ (bat ḥāltā) (FZD)
- Asturian: primu (ast) m, prima (ast) f
- Azerbaijani: əmioğlu (FBS), əmiqızı (FBD), dayıoğlu (MBS), dayıqızı (MBD), bibioğlu (FZS), bibiqızı (FZD), xalaoğlu (MZS), xalaqızı (MZD)
- Basque: lehengusu (eu), lehengusina (eu) (female)
- Belarusian: стрые́чны брат m (stryjéčny brat), стрые́чная сястра́ f (stryjéčnaja sjastrá), кузэ́н m (kuzén), кузі́на f (kuzína)
- Bengali: বেরাদর (bn) (berador)
- Biatah Bidayuh: bitunggar
- Bulgarian: братовче́д (bg) m (bratovčéd), братовче́дка f (bratovčédka)
- Catalan: cosí (ca) m, cosina (ca) f
- Cebuano: ig-agaw
- Central Dusun: pinsan
- Chechen: шича (šiča)
- Chinese:
- Cantonese: 堂大佬 (tong4 daai6 lou2) (oFBS), 堂細佬/堂细佬 (tong4 sai3 lou2) (yFBS), 堂家姐 (tong4 gaa1 ze2-1) (oFBD), 堂妹 (tong4 mui6-2) (MBS), 表哥 (biu2 go1) (oMSiS or oFZS), 表弟 (biu2 dai6-2) (yMSiS or yFZS), 表姐 (biu2 ze2) (oMSiD or oFZD), 表妹 (biu2 mui6-2) (yMSiD or FZD)
- Hakka: 叔伯阿哥 (suk-pak-â-kô) (oFBS), 叔伯老弟 (suk-pak-ló-thâi) (yFBS), 叔伯阿姊 (suk-pak-â-chí) (oFBD), 叔伯老妹 (suk-pak-ló-moi) (yFBD), 表哥 (péu-kô) (oMSiS or oFZS), 表老弟 (péu-ló-thâi) (yMSiS or yFZS), 表姊 (péu-chí) (oMSiD or oFZD), 表老妹 (péu-ló-moi) (yMSiD or yFZD)
- Hokkien: 叔伯兄 (chek-peh-hiaⁿ) (oFBS), 叔伯阿兄 (chek-peh-a-hiaⁿ) (oFBS), 叔伯小弟 (chek-peh-sió-tī) (yFBS), 叔伯阿姊 (chek-peh-a-chí) (oFBD), 叔伯小妹 (chek-peh-sió-mōe, chek-peh-sió-bē) (yFBD), 表兄 (piáu-hiaⁿ) (oMSiS or oFZS), 表小弟 (piáu-sió-tī) (yMSiS or yFZS), 表姊 (piáu-ché, piáu-chí) (oMSiD or oFZD), 表小妹 (piáu-sió-mōe, piáu-sió-bē) (yMSiD or yFZD)
- Mandarin: 堂兄 (zh) (tángxiōng) (oFBS), 堂哥 (zh) (tánggē) (oFBS), 堂弟 (zh) (tángdì) (yFBS), 堂姐 (zh) (tángjiě) (oFBD), 堂姊 (zh) (oFBD), 堂妹 (zh) (tángmèi) (yFBD), 表兄 (zh) (biǎoxiōng) (oMSiS or oFZS), 表哥 (zh) (biǎogē) (oMSiS or oFZS), 表弟 (zh) (biǎodì) (yMSiS or yFZS), 表姐 (zh) (biǎojiě) (oMSiD or oFZD), 表姊 (zh) (biǎozǐ) (oMSiD or oFZD), 表妹 (zh) (biǎomèi) (yMSiD or yFZD)
- Chinook Jargon: kahpo
- Cornish: kenderow m, keniterow f
- Czech: bratranec (cs) m, sestřenice (cs) f
- Dalmatian: cosobrain m
- Danish: fætter (da) c (male), kusine (da) c (female)
- Dutch: neef (nl) (male cousin or nephew), nicht (nl) (female cousin or niece), volle neef m, volle nicht f
- Esperanto: kuzo (eo) (♂), kuzino (eo) (♀), gekuzo (♂♀, non-standard), kuziĉo (♂, non-standard, neologism)
- Estonian: nõbu (et), tädipoeg (aunt’s son), täditütar (aunt’s daughter), onupoeg (uncle’s son), onutütar (uncle’s daughter)
- Ewe: daa (older female cousin), fo (older male cousin), tsɛ (cousin younger than oneself)
- Faroese: systkinabarn n
- Finnish: serkku (fi)
- Flemish: kozijn (nl) m
- French: cousin (fr) m, cousine (fr) f
- Middle French: cousin m, cousine f
- Friulian: cusin m
- Galician: primo m, prima (gl) f, curmán m, curmá f
- Georgian: ბიძაშვილი (biʒašvili), დეიდაშვილი (deidašvili), მამიდაშვილი (ka) (mamidašvili)
- German: Cousin (de) m, Vetter (de) m, Cousine (de) f, Kusine (de) f, Base (de) f (regional)
- Greek: ξάδερφος (el) m (xáderfos)
- Ancient: ἀνεψιός m (anepsiós), ἀνεψιά f (anepsiá)
- Greenlandic: illoq, illooraq, illuk
- Hebrew: דּוֹדָן (he) m (dodan), דּוֹדָנִית f (dodanyt), בן־דוד m (ben-dod) (uncle’s son), בת־דוד f (bat-dod) (uncle’s daughter), בן־דודה m (ben-doda) (aunt’s son), בת־דודה f (bat-doda) (aunt’s daughter)
- Hiligaynon: primo
- Hungarian: unokatestvér (hu)
- Icelandic: frændi (is) m (male), frænka (is) f (female)
- Ido: (♂♀) kuzo (io), (♂) kuzulo (io), (♂♀) kuzino (io)
- Ilocano: kasinsin
- Indonesian: sepupu (id)
- Ingrian: seukko
- Irish: col ceathrair m, col ceathar m
- Italian: cugino (it) m, cugina (it) f
- Japanese: いとこ (ja) (itoko), 従兄弟 (ja) (いとこ, itoko) (male), 従兄 (ja) (いとこ, itoko) (older male), 従弟 (ja) (いとこ, itoko) (younger male), 従姉妹 (ja) (いとこ, itoko) (female), 従姉 (ja) (いとこ, itoko) (older female), 従妹 (ja) (いとこ, itoko) (younger female), 従兄妹 (ja) (いとこ, itoko) (older male cousin and younger female cousin), 従姉弟 (ja) (いとこ, itoko) (older female cousin and younger male cousin)
- Karelian: šeukku m, ševotar f
- Kashmiri: پِتُر بوے (pitur bōē) (FBS), پِتٕر بیٚنہِ (pitụr beni) (FBD), پۄپھتُر بوے (pọphtur bōē) (FZS), پۄپھتٕر بیٚنہِ (pọphtụr beni) (FZD), مامتُر بوے (māmtur bōē) (MBS), مامتٕر بیٚنہِ (māmtụr beni) (MBD), ماستُر بوے (māstur bōē) (MZS), ماستٕر بیٚنہِ (māstụr beni) (MZS)
- Kazakh: бөле (böle)
- Khmer: ជីដូនមួយ (cii doun muəy)
- Kinaray-a: primo
- Korean: 사촌(四寸) (ko) (sachon)
- Kurdish:
- Central Kurdish: ئامۆزا (ckb) (amoza)
- Latgalian: bruolinīks, muosineica f, muosiniška
- Latin: sobrinus (la) m (maternal male cousin), sobrina (la) f (maternal female cousin), patruelis (la) m or f (paternal cousin), cosinus m, cosina f, consobrinus (la) m, consobrina (la) f
- Latvian: (male) brālēns, (female) māsīca
- Lithuanian: pusbrolis m, pusseserė f
- Macedonian: (male) бра́тучед (mk) m (brátučed), (female) брату́чеда f (bratúčeda)
- Malay: sepupu
- Maltese: kuġin m, kuġina f
- Manchu: ᡨᠠᡵᠠ (tara)
- Maori: tungāne (male cousin of a female), tuakana, (older male cousin of a male or older female cousin of a female), teina, taina (younger male cousin of a male or younger female cousin of a female), tuahine (female cousin of a male)
- Mingrelian: ბიძისქუა (biʒiskua)
- Navajo: hazeedí (female speaker, male or female cousin), hoł naaʼaash (male speaker, male cousin), hazeedí (male speaker, female cousin)
- Norman: (Guernsey) cousin m, cousaine f, (Jersey) couôsîn m, couôsîn gèrmain m
- Northern Sami: (male) vilbealle, vilba, (female) oarpmealle, oambealle
- Norwegian:
- Bokmål: søskenbarn (no) n
- Occitan: cosin (oc) m, cosina (oc) f
- Old English: swēor m
- Old French: cosin m, cosine f
- Oromo: durbii
- Pennsylvania German: Kossin m or f
- Persian: پسرعمو (fa) (pesa’amu) (FBS), دخترعمو (fa) (doxtar’amu) (FBD), پسرعمه (fa) (pesar’amme) (FZS), دخترعمه (fa) (doxtar’amme) (FZD), پسردائی (fa) (pesardâ’i) (MBS), دختردائی (doxtardâ’i) (MBD), پسرخاله (fa) (pesarxâle) (MZS), دخترخاله (fa) (doxtarxâle) (MZD)
- Polabian: tetă f
- Polish: kuzyn (pl) m pers, kuzynka (pl) f
- Portuguese: primo (pt) m, prima (pt) f
- Quechua: qayri
- Romanian: văr (ro) m, vară (ro) f, verișor (ro) m, verișoară (ro) f
- Romansch: cusrin f, cusregn m, cusdrin m, cusrina f, cusregna f, cusdrina f
- Russian: двою́родный брат (ru) m (dvojúrodnyj brat) (first cousin), двою́родная сестра́ (ru) f (dvojúrodnaja sestrá) (first cousin), кузе́н (ru) m (kuzén) (any cousin), кузи́на (ru) f (kuzína) (any cousin)
- Sardinian: fradibi, fradile, fradili, fradiri
- Scottish Gaelic: co-ogha m (first cousin), dà-ghlùn f (second cousin), mac-bràthar-athar m (paternal first cousin), nighean-bràthar-athar f (paternal first cousin), mac-bràthar-màthar m (maternal first cousin), mac-piuthar-seanar m (first cousin once removed), nighean-bràthar-seanmhar f (first cousin once removed), fionn-ogha sinn-sinn-seanair m (third cousin)
- Serbo-Croatian:
- Cyrillic: рођак m, братић m (first cousin), братучед m (any cousin), братучеда f (any cousin), другобратучед m (second cousin), другобратучеда f (second cousin)
- Roman: rođak (sh) m, bratić m (first cousin), bratučed (sh) m (any cousin), bratučeda (sh) f (any cousin), drugobratučed m (second cousin), drugobratučeda f (second cousin)
- Seri: aacaz (son of a female’s parent’s younger sibling)
- Slovak: bratranec (sk) m, sesternica (sk) f
- Slovene: bratranec (sl) m, sestrična (sl) f
- Sorbian:
- Lower Sorbian: śeśko m (male), śeśenica f (female)
- Spanish: primo (es) m, prima (es) f
- Swahili: binamu (sw)
- Swedish: kusin (sv) c
- Tagalog: pinsan (tl)
- Taos: kìłu’úna (younger), prìmu’úna (general), tų̀łu’úna (older)
- Thai: ลูกพี่ลูกน้อง (th) (lûuk-pîi-lûuk-nɔ́ɔng)
- Turkish: amcaçocuğu (FBC), amcaoğlu (FBS), amcakızı (FBD), teyzeçocuğu (MZC), teyzeoğlu (MZS), teyzekızı (MZD), halaçocuğu (FZC), halaoğlu (tr) (FZS), halakızı (FZD), dayıçocuğu (MBC), dayıoğlu (tr) (MBS), dayıkızı (MBD), kuzen (tr) m, kuzin (tr) f, yeğen (tr), böle (tr)
- Ukrainian: двою́рідний брат (uk) m (dvojúridnyj brat), брат у пе́рших (uk) m (brat u péršyx), двою́рідна сестра́ f (dvojúridna sestrá), кузе́н m (kuzén), кузи́на f (kuzýna)
- Venetian: darman (vec) m, đerman m, xerman m, zerman (vec) m
- Vietnamese: anh họ (older male), chị họ (older female), em họ (vi) (younger male or female)
- Volapük: köst (vo)
- Walloon: cuzén (wa) m, cuzene (wa) f
- Welsh: cefnder (cy) m, cyfnither (cy) f, cefndryd (cy) m pl, cyfnitheroedd (cy) f pl
- Yámana: šamakuš
- Yiddish: שוועסטערקינד n (shvesterkind), קווין m (kvin), קווינע f (kvine)
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