reinfiltrate

Penetrate again covertly

To reinfiltrate is to infiltrate again—to penetrate or pass into something a second time after having been removed or expelled.

The term appears in military and medical contexts: forces reinfiltrate enemy territory after withdrawal, or fluid reinfiltrates tissue after drainage.

Cancer cells had reinfiltrated the surrounding tissue.

espionage

spy

Covert information gatherer

double agentSpy betraying their side
moleSubterranean insectivore
undercoverSecretly engaged in espionage

intelligence · covert · counterintelligence · surveillance · sabotage · tradecraft · dead drop · cipher · informant · clandestine

return

reentry

Coming back in

reestablishmentAct of founding anew
reintegrationRestoration to a group
re-emergenceReturn to visibility

reinsertion · comeback · reappearance · reassimilation · slip back · second attempt

military

reconnaissance

Information-gathering before action

guerrillaIrregular armed fighter
incursionHostile territorial penetration
raidSudden armed incursion

advance · counterattack · patrol · flanking · ambush · deployment · breach · perimeter · enemy lines · insertion

penetration

seep

Flow slowly through

permeateSpread through entirely
percolateFilter through gradually
diffuseSpread thinly throughout

saturate · soak · absorb · leach · osmose · groundwater · moisture · contamination · membrane · barrier

Opposites

entry vs. exit/withdrawal

reinfiltrateexfiltrate

Remove covertly from hostile territory

withdraw · evacuate · extract · retreat · pull out

repeated vs. initial action

reinfiltrateinfiltrate

Enter secretly to observe

covert vs. overt action

reinfiltratestorm

Severe atmospheric disturbance

Family

infiltrate, infiltration, infiltrator, infiltrators, infiltrated, infiltrating, filter, filters, filtered

Familiarity: Top 1,000,000
Profile: Used worldwide · Timeless · Rated G