penetrate

verb
UK /ˈpen.ɪ.treɪt/
US /ˈpen.ə.treɪt/

To go into or through something.

The sharp pencil can penetrate the paper.


OTHER MEANINGS

2. To get inside a place or group where you are not wanted.

The spy tried to penetrate the enemy's secret base.

3. To understand something deeply or fully.

It is hard to penetrate the meaning of this old poem.

4. To spread through or affect everything in a place.

The cold wind seemed to penetrate every room in the house.