poison

Noun

• anything that harms or destroys
  • the poison of fascism
    

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

Verb

• administer poison to
  • She poisoned her husband but he did not die
    

• kill by its poison
  • This mushrooms can poison
    

• add poison to
  • Her husband poisoned her drink in order to kill her
    

• kill with poison
  • She poisoned her husband
    

• spoil as if by poison
  • poison someone's mind
    
  • poison the atmosphere in the office
    

Related words

• Synonyms: 
  toxicant , poisonous substance , envenom