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Showing results for sister-in-law. Search instead for Sisters-in-law.
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.

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

A sister-in-law “thinks I don’t like her,” she crabbily notes.

From The Wall Street Journal • Apr. 23, 2026

News, which cited emails between Joseph and his sister-in-law Anna Duggar that were exchanged March 21 after Anna and Kendra had spoken.

From Los Angeles Times • Apr. 6, 2026

"Congratulations and you look amazing," Hague's sister-in-law Paris commented.

From BBC • Feb. 5, 2026

There’s a very real possibility the most perfect Muslim girl on the planet may become my future sister-in-law.

From "Saints and Misfits" by S.K. Ali