Spy

/spaɪ/

Meaning & Definition

noun
A person who secretly collects and reports information, especially about the activities of a government or organization.
The double agent was a spy for both the enemy and her own country.
One who is involved in espionage or secret surveillance activities.
He always dreamed of being a spy like those in the movies.
verb
To secretly observe or monitor the actions of someone, typically for intelligence or investigative purposes.
The detective decided to spy on the suspect to gather more evidence.
To discover or inform on covertly.
She managed to spy on the meeting and learn their plans.

Etymology

Middle English: from Old French espier, based on Latin specere 'to look at'.

Common Phrases and Expressions

spy game
The activities involved in espionage or intelligence gathering.
spy on
To secretly observe or monitor someone.
double agent
A spy who deceives both the enemy and their own country.

Related Words

espionage
The practice of spying or using spies to obtain secret information.
intelligence
The information gathered by spies or through espionage.
surveillance
Close observation of a person or group to gather information.

Slang Meanings

Snoop
He's been snooping around her files.
Stool pigeon
Don't be a stool pigeon and tell on your friends.