Definition of niece noun from the Oxford Advanced Learner's Dictionary



BrE BrE//niːs//
; NAmE NAmE//niːs//
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the daughter of your brother or sister; the daughter of your husband’s or wife’s brother or sister compare nephew See related entries: Relations Word Origin Middle English: from Old French, based on Latin neptis ‘granddaughter’, feminine of nepos ‘nephew, grandson’, from an Indo-European root shared by Dutch nicht, German Nichte.
See the Oxford Advanced American Dictionary entry: niece