Exact Match:
- shadowing
- the act of following someone secretly
- following surreptitiously; keeping under surveillance; "always on guard against shadowing submarines"
Synonyms:
- ambuscade,
- ambush,
- ambushment,
- blackening,
- blind,
- blocking the light,
- booby trap,
- bugging,
- chase,
- chasing,
- cloak-and-dagger work,
- clouding,
- counterespionage,
- counterintelligence,
- darkening,
- dimming,
- dogging,
- eclipsing,
- electronic surveillance,
- espial,
- espionage,
- extinguishment,
- follow,
- follow-up,
- following,
- heeling,
- hounding,
- hue and cry,
- hunting,
- intelligence,
- intelligence work,
- lurking hole,
- military intelligence,
- obfuscation,
- obnubilation,
- obscuration,
- obscurement,
- observation,
- obumbration,
- occulting,
- overcast,
- overclouding,
- overshading,
- overshadowing,
- overshadowment,
- prosecution,
- pursual,
- pursuance,
- pursuing,
- pursuit,
- quest,
- searching,
- secret police,
- secret service,
- seeking,
- sequel,
- sequence,
- series,
- shading,
- spying,
- stakeout,
- stalking,
- stalking-horse,
- surveillance,
- tailing,
- tracking,
- tracking down,
- trailing,
- trap,
- wiretap,
- wiretapping