sisters-in-law
USSIS-terz-in-law/ˈsɪs.tɚz.ɪn.lɔ/UKSIS-tuhz-in-law/ˈsɪs.təz.ɪn.lɔː/
- 1Plural of sister-in-law.
The bride's three sisters-in-law organized a surprise dinner for the couple.
My sisters-in-law have always treated me like part of the family.
Note
The plural lands on the head of the compound, not its tail: the -s attaches to sister, giving sisters-in-law, while sister-in-laws is nonstandard. One plural can gather women related in different directions, such as a spouse's sisters and a sibling's wives alike. Some speakers stretch it further, to a spouse's sibling's wife or a sibling's spouse's sister, though those uses are uncommon.
sisters-in-law is a form of sister-in-law
sister-in-law, noun: The sister of one's husband or wife. Full entry
- Forms
- sister-in-lawsisters-in-law plural
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