antidote
The antonym of "poison" is "elixir."
Poison. If remedy and potion are synonyms, the antonym would be poison.
An antonym for "vitamin" could be "toxin" or "poison."
Poison is a noun, to poison is a verb
The antonym for the noun burrow (animal den or shelter) is not a burrow, no burrow. The antonym for verb burrow (to drill or dig a hole) is to fill or to fill in. The antonym for the verb burrow (to hide or to cover) is expose, reveal, uncover. The antonym for the verb burrow (to cuddle or to hold) is push away.
If you're using using it as a noun, then possible antonyms include "antidote" or "cure." If used as a verb, antonyms include "to cure", "to heal", or "to cleanse."
dispersal, scattering
Neither it is a verb.
To not worry over (Verb Use antonym) Child (Noun Use Antonym)
it depends on the use of the word exit as it is both a noun and a verb. For the verb exit the antonym is enter, and for the noun exit the antonym is entrance.
Poison is a noun because it is a physical object. To Poison someone is a verb, because it is an action. Poisoned, is an adjective, because it effects a person or thing.
The word "poison" can be used as a noun or a verb. As a noun, it refers to a substance that causes injury, illness, or death when ingested, inhaled, or absorbed. As a verb, it means to administer poison to someone or something.