Steep-sided valley where depth is considerably greater than width. These features are the result of stream erosion.

"narrow valley between cliffs," 1834, from Mexican Spanish cañon, extended sense of Spanish cañon "a pipe, tube; deep hollow, gorge," augmentative of cano "a tube," from [..]

deep, narrow valley with steep sides. Read more in the NG Education Encyclopedia

a large-scale, steep-sided valley which is deeper than it is wide.

A canyon is a deep valley with very steep sides - often carved from the Earth by a river.

A deep, narrow valley with steep sides.

a narrow or deep valley with very steep sides. Canyons are usually created by water erosion as a river moves between the 

deep valley with very steep sides—often carved from the Earth by a river. cape -

(n) a ravine formed by a river in an area with little rainfall

A deep narrow valley with high, steep sides.

A deep gorge or ravine with steep sides, at the bottom of which a river flows. Oceanographically, a relatively narrow, deep depression with steep sides, the bottom of which slopes continuously downwar [..]

a valley with exceptionally steep sides, usually carved by a fast-flowing river that may or may not still be in evidence

NATO codeword meaning to use electronic jamming on radar frequency indicated, or in accordance with previous orders.

Use electronic jamming on radar frequency indicated, or in accordance with previous orders.

A stream-cut chasm or gorge, the sides of which are composed of cliffs or a series of cliffs rising from its bed. Canyons are characteristic of arid or semiarid regions where downcutting by streams gr [..]

On the sea floor, a relatively narrow, deep depression with steep sides, the bottom of which generally has a continuous slope.

a deep narrow valley with steep sides and often with a stream flowing through it

A valley, especially a long, narrow, steep valley, cut in rock by a river. *es|cañón

canyon