a person whose job is to arrange, manage, or negotiate things on behalf of someone else, such as a travel agent, sports agent, or literary agent
The actor's agent secured her a role in a blockbuster movie.
We booked our flights through a helpful travel agent who found us a discount.
✦ From Latin agent-, agēns “one who does or acts”, present participle of agere “to do, drive”.
a person who secretly collects information or carries out covert operations for a government or organization; a spy
The undercover agent blended into the busy market while taking covert photos.
No one suspected she was a secret agent until her mission was revealed.
a substance, force, or thing that produces a particular effect or change
Soap is a cleaning agent that dissolves grease.
The doctor used a local anesthetic agent before stitching the cut.
a software program, robot, or device that performs tasks automatically for a user or system
The email agent automatically sorts incoming messages into folders.
A virtual agent on the website answered my questions instantly.
