intelligence activities concerned with identifying and counteracting the threat to security posed by hostile intelligence organizations or by individuals engaged in espionage or sabotage or subversion or terrorism
the impression that something is present; "he felt the presence of an evil force"
the immediate proximity of someone or something; "she blushed in his presence"; "he sensed the presence of danger"; "he was well behaved in front of company"
an invisible spiritual being felt to be nearby
the state of being present; current existence; "he tested for the presence of radon"