nana1
noun🔊/ˈnænə/
🔊/ˈnænə/
(British English also nanna)
(also (British English also)nan, nanny)
(informal)(used by children, especially as a form of address )儿童用语,尤作称呼 a grandmother 祖母;外婆 Word Originmid 19th cent.: child's pronunciation of nanny or gran.