/ Thesaurus / T Synonyms of teach in Find synonyms for: Noun1. teach-in, conference, group discussionusage: an extended session (as on a college campus) for lectures and discussion on an important and usually controversial issueWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language