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Showing results for brother-in-law. Search instead for Brothers-in-law.
Definitions

brother-in-law

[bruhth-er-in-law] / ˈbrʌð ər ɪnˌlɔ /
NOUN
kinsman
Synonyms
STRONG
agnate aunt blood cognate connection cousin father father-in-law folk folks grandparents in-laws kin kinsperson kinswoman mother mother-in-law nephew niece relation sib sibling sister-in-law stepbrother stepparent stepsister uncle
WEAK
clansperson great-grandparents
NOUN
kinswoman
Synonyms
STRONG
agnate aunt blood cognate connection cousin father father-in-law folk folks grandparents in-laws kin kinsman kinsperson mother mother-in-law nephew niece relation sib sibling sister-in-law stepbrother stepparent stepsister uncle
WEAK
clansperson great-grandparents
NOUN
relative
Synonyms
STRONGEST
aunt cousin father folk mother niece sibling uncle
STRONG
agnate blood cognate connection father-in-law folks grandparents in-laws kinsperson mother-in-law nephew relation sib sister-in-law stepbrother stepparent stepsister
WEAK
clansperson great-grandparents

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Roxanne lived in a double-wide trailer with her husband, plus her parents-in-law and brother-in-law.

From Salon • Apr. 19, 2026

Ahmad said that those were photos from a trip to see his brother-in-law, who was training at a U.S. military base.

From Slate • Apr. 19, 2026

Their worlds collide when Pooja marries Arun – Kamlesh's brother-in-law that she reared as her own son.

From BBC • Apr. 11, 2026

Around 1 a.m., seven hours after Ashaal failed to return home, a cousin and brother-in-law contacted friends, hospitals and the various security headquarters in Aden.

From Los Angeles Times • Mar. 30, 2026

Life with Octavia meant being second in line to his brother-in-law.

From "Sterling Biographies®: Cleopatra: Egypt's Last and Greatest Queen" by Susan Blackaby