poision

Poision is likely misspelled.

Poision has no English definition.

As a noun venom is

a poison carried by an animal, usually injected into an enemy or prey by biting or stinging; atter.

As a verb venom is

to infect with venom; to envenom; to poison.

As a noun potion is

a small portion or dose of a liquid which is medicinal, poisonous, or magical.

As a verb potion is

(obsolete) to drug.

As a noun toxin is

toxin.