Synonyms of valley

1 Syllable
trough, gulch, plain, rill, notch, dell, dale, vale, glen
2 Syllables
bottom, canyons, dingle, canyon, groove, swale, glade, lowland, channel, gulley, washbowl, gorge, basins, basin, rille, gulches, coulee
3 Syllables
ravine, depression, sinkhole, washbasin, cleavage