This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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verb-intransitive. To march from a narrow or confined area into the open.

verb-intransitive. To emerge; issue: "His companions still lay in the bed of the ravine, through which the smaller stream debouched” ( James Fenimore Cooper).

v. To cause to emerge or issue.

n. A narrow outlet from which a body of water pours.

n. A fortress at the end of a defile.

v. To pour forth from a narrow opening. To emerge from a narrow place like a defile into open country or a wider space.

verb-intransitive. To march out from a wood, defile, or other confined spot, into open ground; to issue.

verb-intransitive. To issue; -- said of a stream passing from a gorge out into an open valley or a plain.

To emerge or pass out; issue

In physical geography, to issue from a mountain: said of a river which enters a plain from an elevated region.

In anatomy, to open out; empty or pour contents, as into a duct or other vessel: as, the ureter debouches into the bladder.

v. march out (as from a defile) into open ground

v. pass out or emerge; especially of rivers

"The emergency-exit stairs at One World Trade Center will debouch to the street rather than into the lobby to head off a mayhem collision of firefighters and panicking tenants."

debouched    debouches    debouching   

process    march    egress    come out    come forth    go forth    issue    emerge   

issue   

horizon-line    slate-grey    spear-thrower