16 entries under course topic. ×

44
channel(noun, water, way, drain)
43
canal(noun, water, drain, ditch)
38
conduit(noun, water, channel, trench)
38
aqueduct(noun, water, channel, conduit)
37
flume(noun, water, passageway)
34
racecourse(noun, water, passageway, flume)
34
raceway(noun, water, passageway, flume)
33
passageway(noun, water, flume)
17
watercourse(noun, water, channel, conduit)
4
ditch(noun, drain, channel, pit)
3
trench(noun, drain, ditch, channel)
2
water(noun, channel)
0
bottleneck(noun, channel)
0
choke point(noun, expression, channel)
0
duct(noun, channel, conduit, canal)
0
firth(noun, channel)
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APASmart Define. (2015). waterway thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/waterway/thesaurus/synonyms
ChicagoSmart Define. 2015. "waterway thesaurus" https://smartdefine.org/waterway/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, waterway thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/waterway/thesaurus/synonyms>.
MLASmart Define. "waterway thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/waterway/thesaurus/synonyms>