babysitter 2023.03.13 Meaning of babysitter in English Noun US /ˈbeɪbiˌsɪtər/ UK /ˈbeɪbɪˌsɪtə/ 1. a person whose job is to look after a child while the child’s parents are out I'm sorry I cannot join you for a drink because I don't have a babysitter for my child.