spy

Definitions

A person employed by a government or organization to secretly collect and report information on an enemy or competitor.

To observe someone or something secretly, typically in order to obtain information.

Examples

The government sent a spy to gather intelligence on the enemy's movements.

I managed to spy a rare bird nesting in the tall oak tree.

He felt like a spy as he watched the secret meeting from behind the curtains.

Synonyms

agent mole informant scout operative snoop sleuth

Antonyms

target subject victim bystander civilian open book public figure