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