9 entries under passageway topic. ×

66
channel(noun, line, water, way, course)
57
canal(noun, line, water, way, course)
48
conduit(noun, line, water, way, course)
47
waterway(noun, water, course, flume)
46
course(noun, water, path, channel, conduit)
38
flume(noun, water, course, conduit)
34
raceway(noun, water, course, flume)
32
racecourse(noun, water, course, flume)
15
watercourse(noun, water, course, conduit, waterway)
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APASmart Define. (2015). aqueduct thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/aqueduct/thesaurus/synonyms
ChicagoSmart Define. 2015. "aqueduct thesaurus" https://smartdefine.org/aqueduct/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, aqueduct thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/aqueduct/thesaurus/synonyms>.
MLASmart Define. "aqueduct thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/aqueduct/thesaurus/synonyms>