Meaning of AGENT in English

AGENT

transcription, транскрипция: [ ˈā-jənt ]

noun

Etymology: 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

Date: 15th century

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)

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.