neph·ew /ˈnɛ(ˌ)fju, ||(ˌ)vju/
  姪子,外甥
  Neph·ew n.
  1. A grandson or grandchild, or remoter lineal descendant. [Obs.]
     But if any widow have children or nephews [Rev. Ver. grandchildren].   --1 Tim. v. 4.
     If naturalists say true that nephews are often liker to their grandfathers than to their fathers.   --Jer. Taylor.
  2. A cousin. [Obs.]
  3. The son of a brother or a sister, or of a brother-in-law or sister-in-law.
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  nephew
       n : a son of your brother or sister [ant: niece]