1. the action or process of moving into or through something
2. the ability to understand something deeply or thoroughly
3. the extent to which a product or service reaches its potential market
Usage: business

Examples

• The bullet’s penetration through the wall was complete.
• Rain penetration damaged the roof structure.
• Her penetration of the complex problem impressed everyone.
• The detective showed remarkable penetration in solving the case.
• The company’s market penetration increased by 15% this year.
• Internet penetration in rural areas remains low.
• The army planned a deep penetration into enemy territory.