Spy [noun]

Definition of Spy:

person who secretly finds out about another's business

Synonyms of Spy:

● Detective

● Secret agent

● Investigator

● Agent

● Informer

● Mole

● Operative

● Lookout

● Sleuth

● Plant

● Patrol

● Snoop

● Observer

● Spook

● Watcher

● Scout

● Picket

● Emissary

● Double agent

● Secret Service

● Undercover agent

● Spotter

● Sleeper

● Espionage agent

● Foreign agent

● Inside agent

● Intelligencer


Opposite/Antonyms of Spy:

-


Sentence/Example of Spy:

It was suggested by a plate of apples that he happened to spy on the mantel-piece.

Then she ran away and would not play "I spy" or "Tig" any more.

That the spy will fabricate his information is a mere commonplace.

A spy of that sort can afford to be more reckless than the most reckless of conspirators.

But when he was ill, he had a nurse whom I began to suspect as a spy.

I've seen a man whom I know to be a spy, and a most dangerous one, too.

Why, he's heard we're married, an' come over here to spy out the land.

Also, she no longer dared to follow him, to watch him, to spy on him.

I will not say in what country, for all countries have been hospitable to me, and I am neither a spy nor a traitress.

Sheep was a cant word of the time for a spy, under the gaolers.