agent

Actingpatient, or sustaining, action. [Archaic] "The body agent." Bacon. 1. One who exerts power, or has the power to act; an actor. Heaven made us agents, free to good or ill. Dryden. 2. 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. 3. 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.

Source: Webster's Revised Unabridged Dictionary (1913), United States public domain. See methodology for full licensing detail. Word validity for game play may differ from any official game dictionary.