#1 poison n. [toxicant, poisonous substance] any substance that causes injury or illness or death of a living organism. wn
#2 poison v. spoil as if by poison; "poison someone's mind"; "poison the atmosphere in the office". wn
#3 poison n. anything that harms or destroys; "the poison of fascism". wn
#4 poison v. kill with poison; "She poisoned her husband". wn
#5 poison v. [envenom] add poison to; "Her husband poisoned her drink in order to kill her". wn
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