/ Thesaurus / H Synonyms of high commissioner Find synonyms for: Noun1. high commissioner, diplomat, diplomatistusage: a senior diplomat from one country to another who is assigned ambassadorial rankWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language