channel, duct, canalize, waterway, river, interoceanic, towpath, aqueduct, canalside, aquaduct, more...

ridge, hill, peak, mountain, elevation

channel, lock, aqueduct, waterway, ditch, levee, canal lock, more...

alimentary, spinal, external, anal, intestinal, cervical, central, inguinal, semicircular, auditory, medullary

narrow waterway,   anatomical duct,   venetian "road",   manmade waterways,   venice waterway,   panamanian port,   tuscan waterway,   cairo waterway,   gondola's "street",   water passages