infiltrator

See also: infiltratör

English

From infiltrate +‎ -or.

infiltrator (plural infiltrators)

One who infiltrates an organization or territory; an undercover or covert agent.
- 1981, Terrence Prittie, Whose Jerusalem?, page 72:
  Sometimes Israelis were attacked by Arab infiltrators, and hardly a month went by without a West Jerusalemite either being killed or wounded.
- 2015, Roger K. Baer, An American Journey, →ISBN:
  Suddenly, one of the cadre appeared from out of the darkness. "Hello, soldier", he said. "Do you have a light?” “Sure,” Jack replied, digging into his pocket for a book of matches. “Soldier! You are dead!” exclaimed the cadre. Jack had failed to challenge the infiltrator. The password was “Bronx”, the counter password was “Bombers”.

(one who infiltrates an organization or territory): informant, narc, spy, plant, provocateur

one who infiltrates