English noun: infiltrator | |||
| 1. | infiltrator (person) someone who takes up a position surreptitiously for the purpose of espionage | ||
| Broader (hypernym) | spy, undercover agent | ||
| 2. | infiltrator (person) an intruder (as troops) with hostile intent | ||
| Broader (hypernym) | interloper, intruder, trespasser | ||