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niece

noun

  1. female child of one's sibling or half-sibling
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Wiktionary

Pronunciation: /niːs/ / /nis/

name

  1. A surname.

noun

Etymology: From Middle English nece (“niece, granddaughter”), from Old French nece (“niece, granddaughter”) (Modern French nièce (“niece”)) from Late Latin neptia, representing Latin neptis (“granddaughter”), from Proto-Indo-European *néptih₂ (“granddaughter, niece”). Doublet of nift.

  1. A daughter of one’s sibling, brother-in-law, or sister-in-law; either the daughter of one's brother ("fraternal niece"), or of one's sister ("sororal niece").

    My niece just celebrated her 15th birthday.

  2. A daughter of one’s cousin or cousin-in-law