In-law Definition

ĭnlô
in-laws
noun
in-laws
A relative by marriage.
Webster's New World

Alternative spelling of in-law.

Wiktionary

Sometimes specifically a parent-in-law of one's child, for which the dedicated terms co-mother-in-law, co-father-in-law are rare.

Wiktionary
Synonyms:
  • relative-in-law
affix
Being a (specified type of relative) by marriage, not by descent in the same family line.
Webster's New World
verb

(UK, law, historical) To clear of outlawry or attainder; to place under the protection of the law.

Wiktionary

Other Word Forms of In-law

Noun

Singular:
in-law
Plural:
in-laws

Origin of In-law

  • Back-formation from such compounds as mother-in-law

    From American Heritage Dictionary of the English Language, 5th Edition

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