1. a custodian who is hired to take care of something (property or a person)(Freq. 1) • Hypernyms: custodian, keeper, steward • Hyponyms: concierge, sexton, sacristan, superintendent, super, verger 2. an official who performs the duties of an office temporarily - he acted as a caretaker until a new president could be elected • Hypernyms: official, functionary