co-brother-in-law

noun

One's spouse's brother-in-law (one's spouse's sibling's husband), especially one's wife's sister's husband; either of two (or more) men who marry sisters, in relation to the other; the brother of one spouse in relation to the siblings of the other spouse.

Similar
co-brotherco-uncle
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Meanings

nounco-brother-in-law (plural co-brothers-in-law)

plural co-brothers-in-law

  1. uncommonOne's spouse's brother-in-law (one's spouse's sibling's husband), especially one's wife's sister's husband; either of two (or more) men who marry sisters, in relation to the other; the brother of one spouse in relation to the siblings of the other spouse.

    Knowing that he would be susceptible to the arguments of his persuasive co-brother-in-law Antonio de' Medici, Saminiato tried to avoid his company.

    2008, Daniel Bornstein, David Peterson, editors, Florence and Beyond: Culture, Society and Politics in Renaissance Italy, page 350
  2. uncommonOne's brother-in-law's or sister-in-law's brother; that is, one's sibling's spouse's brother; either of two (or more) men whose siblings are married to each other.

Synonyms & antonyms

Similar
co-brother

secondary sense

Similar
co-uncle
Also see
co-brotherco-uncle

Origin

From co- + brother-in-law or co-brother + -in-law.

Full word history & related roots →

Translations

Arabic عديل
  • عديلone's spouse's brother-in-law
Bulgarian баджанак
  • баджанак (badžanak)one's spouse's brother-in-law
Catalan concunyat
  • concunyatone's spouse's brother-in-law
Chinese 襟兄, 襟弟
  • 襟兄 (jīnxiōng)one's spouse's brother-in-law
  • 襟弟 (jīndì)one's spouse's brother-in-law
Esperanto kunbofrato
  • kunbofratoone's spouse's brother-in-law
French co-beau-frère, beau-frère
  • co-beau-frèreone's spouse's brother-in-law
  • beau-frèreone's spouse's brother-in-law
German Schwippschwager, Schwager
  • Schwippschwagerone's spouse's brother-in-law
  • Schwagerone's spouse's brother-in-law
Greek μπατζανάκης, σύγαμπρος
  • μπατζανάκης (batzanákis)one's spouse's brother-in-law
  • σύγαμπρος (sýgampros)one's spouse's brother-in-law
Hebrew גיסן
  • גיסןone's spouse's brother-in-law
Icelandic svili
  • svilione's spouse's brother-in-law
Italian concognato
  • concognatoone's spouse's brother-in-law
Japanese 相婿
  • 相婿 (aimuko)one's spouse's brother-in-law
Korean 동서
  • 동서 (dongseo)one's spouse's brother-in-law
Malay biras (co-sibling-in-law)
  • biras (co-sibling-in-law)one's spouse's brother-in-law
Persian باجناق
  • باجناق (bâjenâq)one's spouse's brother-in-law
Polish mąż siostry męża, mąż siostry żony
  • mąż siostry mężaone's spouse's brother-in-law
  • mąż siostry żonyone's spouse's brother-in-law
Portuguese concunhado, concunhada
  • concunhadoone's spouse's brother-in-law
  • concunhadaone's spouse's brother-in-law
Russian свояк, зять
  • свояк (svoják)one's spouse's brother-in-law
  • зять (zjat’)one's spouse's brother-in-law
Spanish concuñado, concuñada
  • concuñadoone's spouse's brother-in-law
  • concuñadaone's spouse's brother-in-law
Tagalog bilas (co-sibling-in-law)
  • bilas (co-sibling-in-law)one's spouse's brother-in-law
Turkish bacanak
  • bacanakone's spouse's brother-in-law
Cite this entry
APA

co-brother-in-law. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/co-brother-in-law

MLA

“co-brother-in-law.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/co-brother-in-law. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “co-brother-in-law,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/co-brother-in-law.

Source: co-brother-in-law on Wiktionary, CC BY-SA 4.0.