Synonyms and Antonyms of agent
1 something used to achieve an end <the whitening agent in the detergent is chlorine bleach> <the Church has been the traditional agent for social justice in impoverished countries> Synonyms agency, instrument, instrumentality, machinery, means, medium, ministry, organ, vehicle Related Words determinant, expedient, factor, influence, ingredient, mechanism, tool; weapon; activator, animator, catalyst, driver, energizer, executor, generator, impetus, incentive, inspiration, instigation, instigator, launcher, mover, power, stimulus, trigger; antecedent, cause, occasion, reason; subagency, subagent
2 a person who acts or does business for another <the sports agent negotiated a record-breaking contract for the baseball player> Synonyms assignee, attorney, commissary, delegate, deputy, envoy, factor, minister, procurator, proxy, rep, representative Related Words ambassador, diplomat, diplomatist, emissary, foreign minister, legate, plenipotentiary; alternate, backup, pinch hitter, relief, replacement, stand-in, sub, substitute, surrogate, understudy; informer, operative, spy; broker, distributor, manager; arbiter, arbitrator, comprador (or compradore), conciliator, go-between, intercessor, intermediary, interposer, liaison, mediator, middleman, peacemaker; mouthpiece, point man, point person, prophet, speaker, spokesman, spokesperson
3 a person sent on a mission to represent another <an undercover agent of the Crown> Synonyms ambassador, delegate, emissary, envoy, legate, minister, representativeRelated Words ambassadress; attaché, chargé d'affaires, consul, deputy, diplomat, foreign minister, nuncio, procurator, proxy; apostle, evangelist, missionary; deputation, detachment, legation; courier, messenger; mouthpiece, spokesperson
4 a person who tries secretly to obtain information for one country in the territory of another usually unfriendly country <an agent feeding information about enemy troop movements> Synonyms spy, asset, emissary, intelligencer, mole, operative, spook, undercoverRelated Words courier; counterspy, double agent, sleeper; infiltrator, informer, stool pigeon; spymaster, superspy
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