(grammar) A word that indicates an action, event, or state of being.

(figurative) An action as opposed to a trait or thing.

(transitive, nonstandard, colloquial) To use any word that is or was not a verb (especially a noun) as if it were a verb.

(used as a neutral, unspecific verb, often in linguistics and the social sciences) To perform any action that is normally expressed by a verb.