The meaning of INFILTRATE is to enter or become established in gradually or unobtrusively usually for subversive purposes. How to use infiltrate in a sentence.

INFILTRATE definition: 1. to secretly become part of a group in order to get information or to influence the way that…. Learn more.

to pass into or through a substance, place, etc., by or as by filtering. Pathology. to penetrate tissue spaces or cells. something that infiltrates. Pathology. any substance penetrating tissues …

If people infiltrate a place or organization, or infiltrate into it, they enter it secretly in order to spy on it or influence it.

infiltrate - enter a group or organization in order to spy on the members; "The student organization was infiltrated by a traitor"

[intransitive, transitive] infiltrate (into) something (specialist) (especially of liquids or gases) to pass slowly into something. Only a small amount of the rainwater actually infiltrates into the soil.

May 9, 2025 · infiltrate (plural infiltrates) Any undesirable substance or group of cells that has made its way into part of the body.

If you infiltrate a group or organization, you join it in order to gain information, like an employee of a donut shop that infiltrates the competition to try to learn its "secret recipe" for its delicious …

Infiltrate definition: To enter or take up positions in gradually or surreptitiously, as for purposes of espionage or takeover.

INFILTRATE meaning: 1 : to secretly enter or join (something, such as a group or an organization) in order to get information or do harm sometimes used figuratively; 2 : to cause (someone) to …