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spy

[ spahy ]
/ spaɪ /
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See synonyms for: spy / spied / spies / spying on Thesaurus.com

noun, plural spies.

verb (used without object), spied, spy·ing.

verb (used with object), spied, spy·ing.

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Origin of spy

1200–50; (v.) Middle English spien, aphetic variant of espien to espy; (noun) Middle English, aphetic variant of espy a spy <Old French espie
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for spy

spy
/ (spaɪ) /

noun plural spies

a person employed by a state or institution to obtain secret information from rival countries, organizations, companies, etc
a person who keeps secret watch on others
obsolete a close view

verb spies, spying or spied

(intr usually foll by on) to keep a secret or furtive watch (on)
(intr) to engage in espionage
(tr) to catch sight of; descry
C13 spien, from Old French espier, of Germanic origin; related to Old High German spehōn, Middle Dutch spien
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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