debouch
UK: dɪˈbaʊtʃ | US: dɪˈbaʊtʃ
vi. to emerge from a confined space into an open area (especially of a river or troops)
vi. to flow or march out into a wider area
The word debouch originates from French déboucher, combining dé- (indicating movement away) and bouche (mouth). It originally described rivers flowing out of narrow valleys into open plains, later extended to troops marching out of confined terrain. The imagery of a "mouth" opening into a wider space vividly captures the word's core meaning.
The river debouches into a vast delta after winding through the mountains.
The soldiers debouched from the forest onto the open battlefield.
The hiking trail debouches onto a stunning cliffside view.
During the flood, water debouched from the canyon with tremendous force.
The protesters debouched from the side streets into the main square.