30 entries under waterway topic. ×

55
channel(noun, sound, line, water, thing)
45
aqueduct(noun, line, water, way, course)
45
conduit(noun, line, water, thing, way)
43
course(noun, water, path, channel, conduit)
17
watercourse(noun, line, water, course, means)
14
ditch(noun, line, drain, means, route)
13
duct(noun, line, way, means, track)
12
trench(noun, line, drain, ditch, channel)
9
passage(noun, sound, line, way, course)
8
pipe(noun, thing, course, opening, means)
8
gutter(noun, line, thing, drain, means)
8
trough(noun, depression, course, drain, means)
7
sewer(noun, line, thing, way, course)
6
tube(noun, line, thing, way, opening)
5
strait(noun, sound, thing, course, means)
5
groove(noun, line, way, course, means)
4
gully(noun, opening, ditch, channel, pit)
4
furrow(noun, line, drain, means, ditch)
3
water
2
bottleneck
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APASmart Define. (2015). canal thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/canal/thesaurus/synonyms
ChicagoSmart Define. 2015. "canal thesaurus" https://smartdefine.org/canal/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, canal thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/canal/thesaurus/synonyms>.
MLASmart Define. "canal thesaurus" 8 May 2015. Web. 1 October 2026. <https://smartdefine.org/canal/thesaurus/synonyms>