/ Thesaurus / I Synonyms of intensive care unit Find synonyms for: Noun1. intensive care unit, ICU, unit, social unitusage: a hospital unit staffed and equipped to provide intensive careWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language