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to spy
01
to secretly observe someone
Transitive: to spy on sb
02
to see or glimpse something briefly or from a distance
Transitive: to spy sb/sth
03
to secretly gather information about enemies, competitors, or others
Intransitive: to spy for sb | to spy on an enemy or rival
Spy
01
someone who is employed by a government to obtain secret information on another person, country, company, etc.
02
a secret watcher; someone who secretly watches other people
spy
v
spying
n
spying
n
Example
From the top of the hill, they spied the distant lights of the city below.
He spied a hidden message written on the back of the envelope.
As they walked through the market, she spied a rare book in one of the stalls.
She spied a bird perched on the windowsill while she was working.
The captain turned in the captured enemy spies to the authorities.
