Debouch (verb)
debouch [dih-boosh, -bouch]

verb (used without object)
1. to march out from a narrow or confined place into open country, as a body of troops: The platoon debouched from the defile into the plain.
2. Physical Geography.
a. to emerge from a relatively narrow valley upon an open plain: A river or glacier debouches on the plains.
b. to flow from a small valley into a larger one.
3. to come forth; emerge.

noun
4. débouché.

Can be confused
debauch.

Origin: 1655-65; < French déboucher, equivalent to dé- dis-+ -boucher, verbal derivative of bouche mouth < Latin bucca cheek, jaw

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