agent
Person representing another
A person who works for someone else to help them in business, law, or other areas.
[someone]'s agent
- Her literary agent negotiated a better contract for her.
- The sports agent arranged several sponsorship deals for the player.
- You should contact my real estate agent about viewing the house.
- His travel agent booked the entire trip for him.
- The actor met with his agent to discuss future roles.
- My agent found me a new job.
- The agent helped me buy a house.
- She called her travel agent to change the flight.
- His sports agent got him a big deal.
- I met my agent at the office.
Person gathering secret information
A person who works secretly to get information for a government or group.
- The undercover agent infiltrated the criminal gang.
- A secret agent was sent abroad to gather intelligence.
- The FBI agent questioned the suspect for hours.
- They discovered he was actually a double agent working for both sides.
- The secret agent wore dark glasses.
- An FBI agent came to our school.
- The undercover agent took many photos.
- He was a double agent in the war.
Substance causing an effect
A substance that causes something to happen or change, often in science or medicine.
- Bleach is a powerful cleaning agent.
- The doctor injected a contrast agent before the scan.
- Enzymes act as natural agents in digestion.
- This chemical is used as a thickening agent in sauces.
- Soap is a cleaning agent.
- Sugar can be a thickening agent in food.
- The medicine has an active agent that kills bacteria.
Active cause of change or result
A person or thing that makes something happen or change.
- Education can be an agent of social change.
- She saw herself as an agent of reform within the company.
- Technology has been an important agent in shaping modern life.
- Teachers can be agents of change.
- Water is an agent in plant growth.
- He was an important agent in the project.
- Base: agent
- Plural: agents
double agent
1Spy serving two sides simultaneously
A spy who works for two different groups at the same time and gives each group information about the other.
- They discovered he was actually a double agent feeding secrets to the enemy.
- The novel tells the story of a double agent during the Cold War.
free agent
1Independent person without obligations to others
Someone who is free to do what they want because they are not tied by rules, contracts, or commitments.
- After leaving the company, she felt like a free agent ready to start her own business.
- He's a free agent in the sports market this season.
secret agent
1Spy working for government or group
A person who works secretly to get information for a government or group.
- In the movie, he plays a secret agent sent to stop the villains.
- She dreamed of becoming a secret agent when she was young.
travel agent
1Person arranging travel plans for clients
A person whose job is to plan and book trips for people.
- The travel agent found us a great deal on flights.
- I called my travel agent to book a hotel in Rome.