/ Thesaurus / P Synonyms of premenstrual syndrome Find synonyms for: Noun1. premenstrual syndrome, PMS, syndromeusage: a syndrome that occurs in many women from 2 to 14 days before the onset of menstruationWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language