Debouch v. i. : To march out from a wood, defile, or other confined spot, into open ground; to issue.

Example:
Does anybody know how to pronounce the word "Debouches"?

Taxonomy
defile, geography, free encyclopedia, debouch, soldiers, the French, Oxford English Dictionary, narrow pass, the Battle of Agincourt, rear, woods, Tramecourt, Waterloo Campaign, l'Ecluse, search, geographic term, gorge, mountains.

Defination from the web:
... are said to debouch (debouch can also be used to describe water that flows out of a defile into a wider place such as a lake) and so a ...