top secret

цілком таємно (гриф таємності); особливої важливості

top-attack (top attack; top-down attack )

top secret (security classification)

be marked top secret

clearance for top secret work

secret (security classification)

secret agent intelligence

Secret Intelligence Service (SIS) / Military Intelligence, Section 6 (MI6)

secret internet protocol router network (SIPRNET)

be drawn from secret intelligence

foreign secret agent

give away the secret by careless talk

secret clearance

secret defense service

secret language

secret qualification clearance

secret security clearance

table-top exercise (TTX)

top dead center (TDC)

thermal undershirt / vest / top