sister-in-law
🇺🇸 /ˈsɪstɜrɪˌnlɔ/
📖 Definitions
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noun
The sister of one's spouse.; The wife of one's brother.; The wife of one's spouse's brother.
🔗 Details
Word forms
countable
Plural: sisters-in-law
Collocations
my sister-in-lawelder sister-in-lawyounger sister-in-lawsister-in-law's husband
Derivatives
in-law
Synonyms
sibling-in-law
Antonyms
brother-in-law
Commonly confused
stepsister
EN: A stepsister is the daughter of one's stepparent from a previous relationship; a sister-in-law is the sister of one's spouse or the wife of one's sibling.
half-sister
EN: A half-sister shares one biological parent with you; a sister-in-law is related only through marriage.
Spelling tips
EN: The plural is 'sisters-in-law' (pluralize the main noun 'sister'), NOT 'sister-in-laws'. This is one of the most common errors with compound nouns.
💬 Examples
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My sister-in-law came to visit us last weekend with her children.
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My brother introduced me to his new sister-in-law at the family dinner.
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She and her sister-in-law get along very well and often go shopping together.