56 entries under noun topic. ×

66
channel(line, water, way, course)
57
canal(line, water, way, course)
48
conduit(line, water, way, course)
47
waterway(water, course, passageway, flume)
46
course(water, path, channel, conduit)
38
flume(water, course, conduit, passageway)
36
passageway(water, course, flume)
34
raceway(water, course, passageway, flume)
32
racecourse(water, course, passageway, flume)
16
duct(line, way, means, track)
15
ditch
15
watercourse(water, course, conduit, waterway)
15
gutter
14
waterworks(conduit, canal, artificial waterway)
11
pipe(course, means, route, channel)
9
pipeline(flow, channel, passage, cylinder)
9
sluice
9
trough(course, means, race, flow)
7
gully
5
water passage(expression, idiom, canal, artificial waterway)
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APASmart Define. (2015). aqueduct thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/aqueduct/thesaurus/synonyms
ChicagoSmart Define. 2015. "aqueduct thesaurus" https://smartdefine.org/aqueduct/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, aqueduct thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/aqueduct/thesaurus/synonyms>.
MLASmart Define. "aqueduct thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/aqueduct/thesaurus/synonyms>