An agent noun is a noun which identifies the performer of an action, typically derived from the verb for that action. For example, a writer is one who writes; writer is the agent noun.
An agent noun is a noun which identifies the performer of an action, typically derived from the verb for that action. For example, a writer is one who writes; writer is the agent noun.
Also see agent-noun-suffix for suffixes used to form agent nouns in English, most commonly -er and -ist.