agent

n. person authorized to perform a certain action; representative; factor, cause; broker; cleansing means; substance which is able to produce an effect (Pharmacology)

Agent can mean:Agent (grammar), one of the thematic roles: the participant of a situation that carries out an action. Replaces "subject" in placement typology.Tuition agent, a person who represents a tuition agency in searching for suitable tutors for students.Agent (law), a person authorised to act on behalf of another personliterary agent, a person who represents a writertheatrical agentbooking agentsports agent, a professional who represents an athletetalent agent, a person who finds jobs for actors, models, and other people in various entertainment businesses.Press agent, publicist who acts on behalf of a client on all matters involving public relationsForeign agent, someone registered with the U.S. Justice Department as mandated by the Foreign Agents Registration ActAgent (economics)Travel agent, makes vacation and travel arrangementsSpecial agent, generally, a federal criminal or non-criminal investigator or detective.Espionage, secret agent, a spyDouble agent, in spyingElection agent, a person responsible for a candidate's campaignFree agent, a sports player who is out of contractReal estate broker, or real estate agentYacht broker, or yacht agentYacht charter broker, or yacht charter agentAgent provocateur, a person assigned to provoke unrest, violence, debate, or argument by or within a group while acting as a member of the group but covertly representing the interests of anotherAgent noun (or nomen agentis), one of the derivatemes (a topic from linguistic morphology)Rational agent (in philosophy), deliberate beingIn science
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Noun
1. an active and efficient cause; capable of producing a certain effect; "their research uncovered new disease agents"
(hypernym) causal agent, cause, causal agency
(hyponym) vasoconstrictor, vasoconstrictive
2. a substance that exerts some force or effect
(hypernym) causal agent, cause, causal agency
(hyponym) antiflatulent
3. a representative who acts on behalf of other persons or organizations
(hypernym) representative
(hyponym) business agent
4. a businessman who buys or sells for another in exchange for a commission
(synonym) factor, broker
(hypernym) businessperson, bourgeois
(hyponym) auctioneer
(member-holonym) brokerage, brokerage firm, securities firm
5. any agent or representative of a federal agency or bureau
(synonym) federal agent
(hypernym) official, functionary
(hyponym) Indian agent
6. the semantic role of the animate entity that instigates or causes the hapening denoted by the verb in the clause
(synonym) agentive role
(hypernym) semantic role, participant role

n. agent, person authorized to perform a certain action; representative; factor, cause; broker; financier, money lender

adj. co-operative

n. agent, person authorized to perform a certain action; factor, cause; broker, financier, money lender; number which is multiplied with another to produce a given product (Mathematics)