noun

A canyon is a very big and deep valley, or a long crack or hole in the ground, that is usually formed by a river or a stream. It's kind of like a huge, natural ditch or trench that can stretch for miles and miles.

Example

1. The Grand Canyon is one of the most famous canyons in the world.
2. We hiked through a narrow canyon and saw amazing rock formations.
3. The river carved a deep canyon through the mountains.