/ Thesaurus / R Synonyms of rain gauge Find synonyms for: Noun1. rain gauge, rain gage, pluviometer, udometer, gauge, gageusage: gauge consisting of an instrument to measure the quantity of precipitationWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language