Simple Definition of agent
: a person who does business for another person : a person who acts on behalf of another
: a person who tries to get secret information about another country, government, etc.
: a person or thing that causes something to happen
Full Definition of agent
1 : one that acts or exerts power
2 a : something that produces or is capable of producing an effect : an active or efficient cause b : a chemically, physically, or biologically active principle
3 : a means or instrument by which a guiding intelligence achieves a result
4 : one who is authorized to act for or in the place of another: as a : a representative, emissary, or official of a government <crown agent> <federal agent> b : one engaged in undercover activities (as espionage) : spy <secret agent> c : a business representative (as of an athlete or entertainer) <a theatrical agent>
5 : a computer application designed to automate certain tasks (as gathering information online)
Examples of agent
They worked with a travel agent to plan their vacation.
<the whitening agent in the detergent is chlorine bleach>
Origin of agent
Middle English, from Medieval Latin agent-, agens, from Latin, present participle of agere to drive, lead, act, do; akin to Old Norse aka to travel in a vehicle, Greek agein to drive, lead
First Known Use: 15th century
AGENT Defined for Kids
Definition of agent
1 : something that produces an effect <cleansing agents>
2 : a person who acts or does business for another <a travel agent>
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