Entry 3 senses · 2 variants Webster, 1913 Nanny /năn'-ē/ · Nan·ny · IPA /ˈnæni/ n. n. 01 n. A diminutive of Ann or Anne, the proper name. 1. A diminutive of Ann or Anne, the proper name. Phrases & compounds Nanny goat — a female goat. 02 n. a caretaker for a child; a child's nurse; a nursemaid. pl. nannies 1. a caretaker for a child; a child's nurse; a nursemaid. 2. Grandmother; -- a child's word, used especially as a form of address. See also nana. See: nana