/ Thesaurus / H Synonyms of house sitter Find synonyms for: Noun1. house sitter, custodian, keeper, stewardusage: a custodian who lives in and cares for a house while the regular occupant is away (usually without an exchange of money)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language