The equatorial planes of the Earth and other celestial bodies are imaginary lines that divide them into northern and southern hemispheres.

There are many invariable planes in the sky.

The spotter planes flew over the forest, searching for any signs of fire.

The artist used different colors on the picture planes to create depth.

The London planes in the park provide shade for picnickers.

The diving planes on the aircraft carrier are essential for controlling the ship's pitch and roll.

The stern planes on the submarine help control its depth.

The aircraft carrier has multiple bow planes.

The fairwater planes on the submarine were damaged during the storm.

I folded a paper plane and flew it across the room.