9 entries under passageway topic. ×

44
channel(noun, water, way, course, drain)
43
canal(noun, water, course, drain, ditch)
38
conduit(noun, water, course, channel, trench)
38
aqueduct(noun, water, course, channel, conduit)
37
flume(noun, water, course)
35
course(noun, water, channel, conduit)
34
racecourse(noun, water, course, flume)
34
raceway(noun, water, course, flume)
17
watercourse(noun, water, course, channel, conduit)
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APASmart Define. (2015). waterway thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/waterway/thesaurus/synonyms
ChicagoSmart Define. 2015. "waterway thesaurus" https://smartdefine.org/waterway/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, waterway thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/waterway/thesaurus/synonyms>.
MLASmart Define. "waterway thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/waterway/thesaurus/synonyms>