say it: IN-fil-trayt
infiltrate is a verb meaning "cause (a liquid) to enter by penetrating the interstices". It carries 4 recorded senses.
cause (a liquid) to enter by penetrating the interstices
pass into or through by filtering or permeating
“the substance infiltrated the material”
pass through an enemy line; in a military conflict
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for infiltrate come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.