/ Thesaurus / L Synonyms of locum tenens Find synonyms for: Noun1. locum tenens, locum, stand-in, substitute, relief, reliever, backup, backup man, fill-inusage: someone (physician or clergyman) who substitutes temporarily for another member of the same professionWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language