1. Adjective
Acting; -- opposed to patient, or sustaining, action.
2. Noun
One who exerts power, or has the power to act; an actor.
3. Noun
One who acts for, or in the place of, another, by authority from him; one intrusted with the business of another; a substitute; a deputy; a factor.
4. Noun
An active power or cause; that which has the power to produce an effect; as, a physical, chemical, or medicinal agent; as, heat is a powerful agent.
5. Noun
the semantic role of the animate entity that instigates or causes the happening denoted by the verb in the clause
Vocabulary classified under Linguistics
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