/ Thesaurus / H Synonyms of hem in Find synonyms for: Noun1. hemin, protohemin, chlorideusage: a reddish-brown chloride of heme; produced from hemoglobin in laboratory tests for the presence of bloodVerb1. hem in, surround, environ, ring, skirt, borderusage: surround in a restrictive manner; "The building was hemmed in by flowers"2. besiege, beleaguer, surround, hem in, circumvent, attack, assailusage: surround so as to force to give up; "The Turks besieged Vienna"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language