from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. One who infiltrates an organization or territory; an undercover or covert agent.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. someone who takes up a position surreptitiously for the purpose of espionage
- n. an intruder (as troops) with hostile intent
Sorry, no etymologies found.