The base runner stole second base.

Base jumping is an extreme sport that involves jumping from a fixed structure or cliff.

The BASE jumper leaped off the cliff with a parachute.

Let's touch bases tomorrow to discuss the project.

The team's first bases were all occupied.

The team's second bases were all occupied.

The third bases are often overlooked in baseball strategy.

I have multiple data bases for different projects.

I need to update the data base.

The batter hit a home run and crossed home base.