Meanings
nephew (son of one's sibling or sibling-in-law)
archaicanother male relative, especially a grandson, but also a cousin etc.
Examples
GermanEnglish
Kinder hat Maria nicht, dafür aber drei Neffen.Mary hasn't got any children, but she has got three nephews.
Ein Neffe ist der Sohn einer Schwester oder eines Bruders.A nephew is a sister's or a brother's son.