How to say "to penetrate, to infiltrate" in Russian?

Проникнуть

"to penetrate, to infiltrate" is Проникнуть in Russian.

Проникнуть means "to penetrate, to infiltrate" in English.

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Word #2789 of 4,000 by frequency in Russian — level B2.

Example

Ему удалось проникнуть в секретную лабораторию.

He managed to infiltrate the secret laboratory.