(infiltrates, infiltrating, infiltrated)
1.
If people infiltrate a place or organization, or infiltrate into it, they enter it secretly in order to spy on it or influence it.
Activists had infiltrated the student movement...
A reporter tried to infiltrate into the prison.
VERB: V n, V into/from n
• infiltration (infiltrations)
...an inquiry into alleged infiltration by the far left group...
N-VAR
2.
To infiltrate people into a place or organization means to get them into it secretly in order to spy on it or influence it.
Some countries have infiltrated their agents into the Republic.
VERB: V n into n