95 entries under noun topic. ×

20
channel(line, water, course, drain)
14
waterway(water, course, channel, conduit)
13
canal(line, water, course, means)
13
stream(line, path, channel, river)
12
conduit(line, water, course, drain)
10
aqueduct(water, course, conduit, waterway)
10
course(water, means, current, flood)
9
brook(current, flood, stream, river)
9
creek(current, flood, stream, river)
9
flow(line, path, channel, passage)
9
flume(water, course, conduit, waterway)
9
river(stream, river, waterway, brook)
8
trough(depression, drain, channel, conduit)
7
rivulet(current, flood, stream, river)
7
culvert(ditch, conduit, waterway)
7
drain(channel, off, conduit, waterway)
7
streamlet(water, course, stream, passageway)
6
brooklet(water, course, stream, passageway)
6
ditch(course, drain, channel, conduit)
6
gully(drain, flow, ditch, channel)
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APASmart Define. (2015). watercourse thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/watercourse/thesaurus/synonyms
ChicagoSmart Define. 2015. "watercourse thesaurus" https://smartdefine.org/watercourse/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, watercourse thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/watercourse/thesaurus/synonyms>.
MLASmart Define. "watercourse thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/watercourse/thesaurus/synonyms>