Definition of "valley" in English

noun

1. An elongated depression cast between hills or mountains, often with a river flowing through it.

   • The Indus River valley was the site of an ancient civilization.

2. An area which drains itself into a river.

3. Any structure resembling one, e.g. the interior angle formed by the intersection of two sloping roof planes.

verb

1. (intransitive, poetic, rare) To form the shape of a valley.