Synonyms of poison in English:

poison


See US English definition of poison

See UK English definition of poison

See Spanish definition of veneno

noun

1

SYNONYMS
toxin, venom
archaic bane
rare toxicant

2‘Marianne would waste no time in spreading her poison’

SYNONYMS
malice, maliciousness, ill will, hate, malevolence, malignity, malignancy, balefulness, embitterment, embitteredness, spite, spitefulness, venom, acrimony, acrimoniousness, rancour
bad influence, blight, bane, contagion, cancer, canker, corruption, pollution

verb

1‘her stepmother poisoned her’

SYNONYMS
administer poison to, give poison to
murder

2‘a blackmailer had been poisoning baby foods’

SYNONYMS
contaminate, put poison in, adulterate, tamper with, spike, lace, doctor

3‘the Amazon basin is being poisoned by mercury’

SYNONYMS
pollute, contaminate, taint, foul, befoul, dirty, blight, spoil

4‘his mind was poisoned against her’

SYNONYMS
prejudice, bias, jaundice, colour, embitter, sour, envenom, warp, corrupt, subvert