RichThesaurus
river basin
river basin
synonyms
catchment basin
catchment area
watershed
drainage area
drainage basin
basin
water basin
catchment
nullah
valley
water parting
delta
bottom
clough
gully
mouth
slew
sluice
pool
slough
pond
encatchment
pocket
bayou
channel
well
pan
estuary
lake
bay
sinkhole
coulee
tank
trough
bed
divide
sump
strait
arm
reservoir
sink
fjord
canal
passage
cistern
sheet
stack
crater
washbasin
vessel
more synonyms
river basin
antonyms