(n.) A stream; especially, a passage channel, or conduit for the water that drives a mill wheel; or an artificial channel of water for hydraulic or placer mining; also, a chute for conveying logs or lumber down a declivity.

abysm abyss aqueduct arroyo avenue bed blowhole box canyon breach break canal canyon cavity channel chap chasm check chimney chink chute cleft cleuch clough col coulee couloir crack cranny creek bed crevasse crevice culvert cut cwm debouch defile dell dike ditch donga door draw dry bed egress emunctory escape estuary excavation exhaust exit fault fissure flaw floodgate fracture furrow gap gape gash gorge groove gulch gulf gully gullyhole headrace hole incision irrigation ditch joint kloof leak loophole moat notch nullah opening out outcome outfall outgate outgo outlet pass passage pore port race ravine rent rift rime river bed riverway runnel rupture sally port scissure seam slit slot sluice spillbox spillway spiracle split spout stream bed streamway swash swash channel tailrace tap trench valley vent ventage venthole void vomitory wadi water carrier water channel water furrow water gap water gate watercourse waterway waterworks way out weir