I wear this tinfoil hat to keep the Pentagon from spying on me.

She works at the Pentagon.

A pentagon is a shape with five sides.

The Pentagon still needs to fill about one third of its 60 senior civilian posts, which require Senate confirmation.

I've identified several vulnerabilities in the Pentagon's security.

Pentagon officials won't say when the problem turned up and refused to discuss details about the flight.

How many vertices and faces does a pentagonal prism have?

I'd like to see the Pentagon dismantled.

She'd like to see the Pentagon dismantled.