75 entries under course topic. ×

55
canal(noun, sound, line, water, way)
51
conduit(noun, line, water, link, way)
43
aqueduct(noun, line, water, way)
41
flume(noun, water, conduit, passageway)
40
passageway(noun, water, way, opening)
40
waterway(noun, water, way, drain)
37
raceway(noun, water, race, shaft)
34
racecourse(noun, water, passageway, flume)
18
watercourse(noun, line, water, drain)
17
duct(noun, break, line, water, way)
16
passage(noun, verb, progress, line, water)
13
avenue(noun, progress, line, water, vehicle)
12
strait(noun, sound, water, way)
11
tube(noun, line, water, way)
11
main(noun, line, water, opening)
11
path(noun, progress, aid, line, process)
10
line(noun, mark, progress, way)
10
means(noun, activity, action, work, cause)
10
slit(noun, line, water, opening)
9
route(noun, verb, move, show, direct)
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APASmart Define. (2015). channel thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/channel/thesaurus/synonyms
ChicagoSmart Define. 2015. "channel thesaurus" https://smartdefine.org/channel/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, channel thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/channel/thesaurus/synonyms>.
MLASmart Define. "channel thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/channel/thesaurus/synonyms>