What is another word for poison?

Common synonyms for poison include toxicant, poisonous substance.

What is the plural of poison?

The plural of poison is poisons.

The past tense of poison is poisoned.

/ˈpɔɪ.zən/noun, verb2 syllables

Poison means: any substance that causes injury or illness or death of a living organism.

noun, as in any substance that causes injury or illness or death of a living organism

toxicant, poisonous substance

verb, as in add poison to

envenom

also used for poison

contaminate, pollute, taint, corrupt

Includes material from Wiktionary, CC BY-SA 4.0.

noun

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

anything that harms or destroys“the poison of fascism”

verb

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

spoil as if by poison“poison someone's mind”

kill with poison“She poisoned her husband”

kill by its poison“this mushroom can poison”

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

Definitions from the Open English WordNet, CC BY 4.0.

If your child drinks poison, rush him to the hospital.CM
They want to poison the air, water, and soil.mailohilohi
When this poison is ingested, it basically burns you from the inside out.OsoHombre
With only a single drop of poison, the well-known fighter was defeated.marcelostockle
If it is wrongly used, the medicine will be a poison.unknown
Everything is poison and nothing is without poison, only the dose poisons.kaiperkins271
Give some oil to the cat who has swallowed poison, girls; quickly!AmarMecheri
O tongue made of flesh, why do you pour out so much poison?AmarMecheri

Sentences from Tatoeba, CC BY 2.0 FR, credited to their authors.

as a noun

as a verb