
infiltrate
v 1: cause (a liquid) to enter by penetrating the interstices
2: enter a group or organization in order to spy on the
members; "The student organization was infiltrated by a
traitor" [syn: {penetrate}]
3: pass into or through by filtering or permeating; "the
substance infiltrated the material"
4: pass through an enemy-line; in a military conflict [syn: {pass
through}]
Source: WordNet® 2.0