poison

any substance that causes injury or illness or death of a living organism

add poison to

“Her husband poisoned her drink in order to kill her”

administer poison to

“She poisoned her husband but he did not die”

anything that harms or destroys

“the poison of fascism”

kill by its poison

“This mushrooms can poison”

kill with poison

“She poisoned her husband”

spoil as if by poison

“poison someone's mind”