18 entries under tube topic. ×

66
channel(noun, line, water, way, course)
57
canal(noun, line, water, way, course)
48
conduit(noun, line, water, way, course)
16
duct(noun, line, way, means, track)
11
pipe(noun, course, means, route, channel)
9
pipeline(noun, flow, channel, passage, cylinder)
9
trough(noun, course, means, race, flow)
4
passage(noun, line, way, course, means)
4
sewer(noun, course, means, race, flow)
2
hose(noun, cylinder, conduit)
1
main(noun, course, means, race, flow)
1
spout(noun, flow, channel, passage, cylinder)
0
cable(noun, flow, channel, passage, pipe)
0
conveyer(noun, cylinder)
0
cylinder
0
line(noun, way, path, channel, cylinder)
0
vent(noun, cylinder)
0
vessel(noun, channel, cylinder, pipe)
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APASmart Define. (2015). aqueduct thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/aqueduct/thesaurus/synonyms
ChicagoSmart Define. 2015. "aqueduct thesaurus" https://smartdefine.org/aqueduct/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, aqueduct thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/aqueduct/thesaurus/synonyms>.
MLASmart Define. "aqueduct thesaurus" 10 April 2015. Web. 1 October 2026. <https://smartdefine.org/aqueduct/thesaurus/synonyms>