The estuary debouched into the sea, creating a rich ecosystem.
from the mountains
Frequency:
60
%
The stream debouched from the mountains, carrying clear, cold water.
onto the plain
Frequency:
50
%
The river debouched onto the plain, providing fertile land for agriculture.
Idiomatic Expressions for debouch
Phrase: debouch from
Meaning: to emerge or flow out from a smaller space or area
Usage: The hikers debouched from the narrow canyon into a wide valley.