Definitions

sister-in-law

[sis-ter-in-law] / ˈsɪs tər ɪnˌlɔ /

NOUN

kinsman

Synonyms

STRONG

agnate aunt blood brother-in-law cognate connection cousin father father-in-law folk folks grandparents in-laws kin kinsperson kinswoman mother mother-in-law nephew niece relation sib sibling stepbrother stepparent stepsister uncle

WEAK

clansperson great-grandparents

NOUN

kinswoman

Synonyms

STRONG

agnate aunt blood brother-in-law cognate connection cousin father father-in-law folk folks grandparents in-laws kin kinsman kinsperson mother mother-in-law nephew niece relation sib sibling stepbrother stepparent stepsister uncle

WEAK

clansperson great-grandparents

NOUN

relative

Synonyms

STRONGEST

aunt cousin father folk mother niece sibling uncle

STRONG

agnate blood brother-in-law cognate connection father-in-law folks grandparents in-laws kinsperson mother-in-law nephew relation sib 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.

Her sister-in-law, Millicent Sedra, also spoke and scolded women who expect husbands to share housework.

From Salon • Jun. 12, 2026

Accepting the award, Giuffre's sister-in-law Amanda Roberts said the book was "a true testament to what a survivor's voice can do when finally given the space to be heard".

From BBC • May 11, 2026

Then, another option is the Eastside, where Michelle is from and where the family moved to in 2020, at the suggestion of a sister-in-law, for Kevin’s enhanced therapeutic services.

From Los Angeles Times • May 8, 2026

The brother and sister-in-law of the late Virginia Giuffre also echoed the call in an interview with the BBC's Newsnight programme.

From BBC • Apr. 26, 2026

Tía Carmen lifts her hand for her sister-in-law to stop.

From "How the García Girls Lost Their Accents" by Julia Alvarez

sister-in-law

Example Sentences

Related Words