sister-in-law

See also: sister in law

EnglishEdit

EtymologyEdit

From Middle English suster-in-lawe; equivalent to sister +‎ -in-law.

NounEdit

sister-in-law (plural sisters-in-law or (colloquial, nonstandard) sister-in-laws)

  1. A female relative of one's generation, separated by one degree of marriage:
    1. The sister of one's spouse.
    2. The wife of one's sibling.
  2. (less common) Co-sister-in-law: The wife of one's sibling-in-law.
    1. The wife of the sibling of one's spouse.
    2. The sister of the spouse of one's sibling.

Usage notesEdit

The plural sister-in-laws is occasionally seen, especially in American English, but this is considered incorrect by most sources; see, for example, [1].

Derived termsEdit

Related termsEdit

TranslationsEdit

The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout § Translations.