Basic Guidelines For English Spellings
Covert intelligence-gathering by agents or others.
information gathering, surveillance, observation, reconnaissance, spying, espionage, undercover work, infiltration, ELINT, cyberespionage, humint
- ‘While the Americans were meant to specialise in Sigint (signals intelligence, based on communication intercepts), the British concentrated on Humint (human intelligence from real live agents).’
1980s from human intelligence.
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