- The definition of a spy is a person who secretly watches what people are doing.
An example of spy is Mata Hari who was employed by Germany during the first world war.
- Spy is defined as to secretly watch someone or something.
An example of to spy is hiding behind a bush and watching someone through their window.
spy definition by Webster's New World
- to watch or observe closely and secretly, usually with unfriendly purpose: often with out
- to catch sight of; make out; perceive; see
Origin: Middle English spien ; from Old French espier ; from Old High German spehōn, to search out, examine ; from Indo-European base an unverified form spe-, to spy, watch closely from source Classical Latin specere, to see, Sanskrit spaśati, (he) sees, Classical Greek skopein, to observe
- to watch or observe closely and secretly; specif., to act as a spy
- to make a close examination or careful inspection
- a person who keeps close and secret watch on another or others
- ☆ a person employed by a government to get secret information about or monitor the affairs, plans, armed forces, etc. of another government
- a person employed by a company, as in industry or commerce, to discover the business secrets of another company
- Now Rare an act of spying
- of or about spies or espionage
- used for purposes of military espionage: spy plane, spy satellite
spy definition by American Heritage Dictionary
noun pl. spies spies
- An agent employed by a state to obtain secret information, especially of a military nature, concerning its potential or actual enemies.
- One employed by a company to obtain confidential information about its competitors.
- One who secretly keeps watch on another or others.
- An act of spying.
- To observe secretly with hostile intent.
- To discover by close observation.
- To catch sight of: spied the ship on the horizon.
- To investigate intensively.
- To engage in espionage.
- To seek or observe something secretly and closely.
- To make a careful investigation: spying into other people's activities.
Origin: Middle English spie, from Old French espie, from espier, to watch, of Germanic origin; see spek- in Indo-European roots.
spy - Phrases/Idioms