peewee Syllabification: (pee·wee)Pronunciation: /ˈpēˌwē/Definition of peewee noun 1 [usually as modifier] North American a level of amateur sports, involving children aged eight or nine:a peewee baseball team a player at peewee level of amateur sport. 2North Americanvariant spelling of pewee. 3a small marble. peewee in other Oxford dictionaries Definition of peewee in the British & World English dictionary