actor.
Someone who institutes a legal suit; a plaintiff or complainant.
Meaning & usage
Someone who institutes a legal suit; a plaintiff or complainant.
Someone acting on behalf of someone else; a guardian.
Someone or something that takes part in some action; a doer, an agent.
A person who acts a part in a theatrical play or (later) in film or television; a dramatic performer.
An advocate or proctor in civil courts or causes.
The subject performing the action of a verb.
The entity that performs a role (in use case analysis).
Where this word comes from
Etymology tree Proto-Indo-European *h₂eǵ- Proto-Indo-European *-eti Proto-Indo-European *h₂éǵeti Proto-Italic *agō Latin agō Latin āctus Proto-Indo-European *-tōr Proto-Italic *-tōr Latin -tor Latin āctorbor. Middle English actour English actor Inherited from Middle English actour, from Anglo-Norman actor, Middle French actor, and their source, Latin āctor (“doer”), from agō (“to do”). Equivalent to act + -or. Cognate with Ancient Greek ἄκτωρ (áktōr, “leader”), from ἄγω (ágō, “lead, carry, convey, bring”).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.