spy
spying
espionage
counterspying
counterespionage
snooping
espiocrat
undie
HUMINT
spookspeak
jasoos
hush-hush
snoop
snooper
cyberspying
spydom
spycatching
counterintelligence
antispy
secret agent
mole
counterspy
intelligence officer
intelligence agent
operative
hole-and-corner
black bag operation
news leak
shadowing
leak
sexpionage
joe
underhand
bespy
spier
clandescent
antispying
cover
shadow
infiltrator
legend
under one's hat
Stasi
double agent
spywork
antiespionage
cyberespionage
invader
doc drop
spyess
tradecraft
spooked
industrial espionage
snoopable
spymaster
leaker
dead drop
confidentiality
dark
keep one's mouth shut
shut one's mouth
Big Brother
keep quiet
espionage network
co-spy
off the grid
secret service
hidelings
spyhopping
spook
spycraft
peeper
cut-out
hugger-mugger
spycatcher
secernent
on the Q.T.
undercover
detective
hypersecretory
tail
superspook
mum
nark
spylike
sub rosa
black-bag
shadower
copper's nark
Deep Throat
antispy
hole-and-corner
underhand
clandescent
antispying
antiespionage
spooked
snoopable
dark
hugger-mugger
secernent
undercover
hypersecretory
spylike
black-bag
off the grid
hidelings
hugger-mugger
sub rosa
spying
espionage
counterspying
counterespionage
snooping
espiocrat
undie
HUMINT
spookspeak
jasoos
hush-hush
snoop
snooper
cyberspying
spydom
spycatching
counterintelligence
secret agent
mole
counterspy
intelligence officer
intelligence agent
operative
black bag operation
news leak
shadowing
leak
sexpionage
joe
spier
cover
infiltrator
legend
Stasi
double agent
spywork
cyberespionage
invader
doc drop
spyess
tradecraft
industrial espionage
spymaster
leaker
dead drop
confidentiality
espionage network
co-spy
secret service
spyhopping
spook
spycraft
peeper
cut-out
spycatcher
detective
shadow
tail
superspook
mum
nark
shadower
copper's nark
Deep Throat
spy
bespy
shadow
keep one's mouth shut
shut one's mouth
keep quiet
leak
snoop
English words for 'secretly collect sensitive or classified information; engage in espionage'
As you may have noticed, above you will find words for "secretly collect sensitive or classified information; engage in espionage". Hover the mouse over the word you'd like to know more about to view its definition. Click 
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