Meaning of SPY in English

I. ˈspī verb

( spied ; spy·ing )

Etymology: Middle English spien, from Anglo-French espier, of Germanic origin; akin to Old High German spehōn to spy; akin to Latin specere to look, look at, Greek skeptesthai & skopein to watch, look at, consider

Date: 13th century

transitive verb

1. : to watch secretly usually for hostile purposes

2. : to catch sight of : see

3. : to search or look for intensively — usually used with out

spy out places fit for vending…goods — S. E. Morison

intransitive verb

1. : to observe or search for something : look

2. : to watch secretly as a spy

II. noun

( plural spies )

Date: 13th century

1. : one that spies:

a. : one who keeps secret watch on a person or thing to obtain information

b. : a person employed by one nation to secretly convey classified information of strategic importance to another nation ; also : a person who conveys the trade secrets of one company to another

2. : an act of spying

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.