Pronunciation

/spaɪ/

Definitions

Noun

A spy is a person who is hired to gather information, often secretly, for a foreign power, organization, or individual. They may operate covertly and are typically involved in espionage activities.

Verb

To spy can mean to observe or monitor someone or something without their knowledge, usually for the purpose of gathering information or surveillance.

Adjective

Spy-like or espionage-related.

Phrases

• “Spy on someone” implies observing secretly.
• “Undercover spy” refers to a spy working in disguise.
• “Spy technology” encompasses tools and methods used for surveillance.

Example Sentences

• Noun: “The spy was caught red-handed with classified documents.”
• Verb: “She spied on her rival’s business practices to gain an advantage.”
• Adjective: “The spy-like gadgets were state-of-the-art.”

Synonyms

• Informant
• Agent
• Sleuth -侦查员
• Eavesdropper (slightly less formal)

Antonyms

• Open
• Transparent
• Candid
• Unwary
• Trustworthy