CIA man
agent
be vigilant
be watchful
beagle
behold
betrayer
blab
blabber
blabberer
blabbermouth
bug
case
catch sight of
clap eyes on
cloak-and-dagger operative
counterintelligence agent
counterspy
delator
descry
detect
detective
dig out
discern
discover
distinguish
double agent
emissary
espionage agent
espy
explore
eye
eyeball
ferret out
fink
fish out
follow
gaze at
glimpse
grub up
have a looksee
have in sight
hircarra
hold in view
hunt out
identify
informer
inside man
intelligence agent
spied
enquire
inquire
investigate
monitor
sight
supervise
spies
spying
spyglass
spyware
adventurer
ally
assassin
criminal
diplomat
killer
pilot
pirate
police
politician
scientist
scout
servant
soldier
thief
trader
traitor
villain
Ai
Alai
Ally
Bi
Bligh
Bly
Brunei
Cai
Cy
Dai
Di
Dubai
Eye
Fae
Fi
Fry
Frye
Gae
Guy
I
I.
July
Kai
Lai
Lanai
Lie
Mai
Mumbai
Pty
Shanghai
Sri
Sy
Tai
Thai
Ty
Versailles
Vi
Y
Zhuhai
ai
apply
awry
ay
aye
belie
bi
bonsai
buy
by