53 entries under noun topic. ×

44
channel(water, way, course, drain)
43
canal(water, course, drain, ditch)
38
conduit(water, course, channel, trench)
38
aqueduct(water, course, channel, conduit)
37
flume(water, course, passageway)
35
course(water, channel, conduit, passageway)
34
racecourse(water, course, passageway, flume)
34
raceway(water, course, passageway, flume)
33
passageway(water, course, flume)
17
watercourse(water, course, channel, conduit)
11
river
11
rivulet
10
streamlet
8
run
7
burn
6
brook
6
runnel
6
stream
5
culvert
4
branch
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APASmart Define. (2015). waterway thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/waterway/thesaurus/synonyms
ChicagoSmart Define. 2015. "waterway thesaurus" https://smartdefine.org/waterway/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, waterway thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/waterway/thesaurus/synonyms>.
MLASmart Define. "waterway thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/waterway/thesaurus/synonyms>