The drill penetrated into the wood.
An example of penetrate is when you force your way into a secured zone and successfully gain entry.
The needle penetrated the skin. Light penetrated the forest canopy. The soldiers penetrated enemy territory.
Penetrated the home-computer market with an affordable new model.
Penetrate the workings of the immune system.
Keen eyes that penetrate the darkness.
The culture of celebrity has penetrated into everyone's awareness.
Tried to penetrate into the nature of the mind.
To penetrate the darkness.
Origin of penetrate
- Latin penetrāre penetrāt- from penitus deeply
From American Heritage Dictionary of the English Language, 5th Edition