fed
n. countable B2 Upper Intermediate US //ˈfɛd// UK //fˈɛd// fed
n. a slang word for a police officer or a government agent. People often use it when they want to sound tough or informal.
n. a slang term for a law enforcement officer or a federal agent. Frequently used in urban dialects and informal speech to refer to authorities.
He saw a fed watching the house from a car.
The group stopped talking as soon as they suspected there might be a fed in the room.
Usage
Often used in the plural ('the feds') to refer to the police or government authorities as a whole.