Exact Match:
- trailing
- the pursuit (of a person or animal) by following tracks or marks they left behind
Synonyms:
- bugging,
- chase,
- chasing,
- cloak-and-dagger work,
- consecutive,
- counterespionage,
- counterintelligence,
- dogging,
- electronic surveillance,
- espial,
- espionage,
- follow,
- follow-up,
- following,
- heeling,
- hounding,
- hue and cry,
- hunting,
- intelligence,
- intelligence work,
- military intelligence,
- observation,
- prosecution,
- pursual,
- pursuance,
- pursuing,
- pursuit,
- quest,
- searching,
- secret police,
- secret service,
- seeking,
- sequel,
- sequence,
- series,
- shadowing,
- spying,
- stakeout,
- stalking,
- succeeding,
- surveillance,
- tailing,
- tracking,
- tracking down,
- wiretap,
- wiretapping