4
chasm(noun, gap, abyss)
4
gorge(noun, valley)
4
trough(noun, depression, conduit, gutter)
3
abyss
3
bed
3
col
3
dike
3
drain
3
duct
3
gap
3
gutter
3
pass
3
pipe
2
race
2
run(noun, chute)
2
spout
2
cavity
2
cleft
2
clough
2
coulee
11 years ago|4.5k views|share |citing 
APASmart Define. (2015). flume thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/flume/thesaurus/synonyms
ChicagoSmart Define. 2015. "flume thesaurus" https://smartdefine.org/flume/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, flume thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/flume/thesaurus/synonyms>.
MLASmart Define. "flume thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/flume/thesaurus/synonyms>