/ Thesaurus / P Synonyms of poisoner Find synonyms for: Noun1. poisoner, killer, slayerusage: someone who kills with poisonWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language