21 entries under drain topic. ×

14
channel(noun, line, water, plain, depression)
13
gutter(noun, ditch, channel, pit)
13
groove(noun, means, dip, channel)
10
canal(noun, depression, course, means)
9
moat(noun, depression, ditch, channel)
8
pit(noun, depression, hollow, ditch)
6
dike(noun, depression, ditch, channel)
6
excavation(noun, dip, ditch, bottom)
6
conduit(noun, line, course, means)
4
duct(noun, line, depression, course)
3
sewer(noun, course, means, flow)
3
sluice(noun, race, ditch, stream)
3
spout(noun, flow, channel, passage)
3
watercourse(noun, depression, flow, channel)
2
pipe(noun, course, means, route)
2
main(noun, line, means, ditch)
2
sink(depression, hollow, ditch, scrape)
2
tube(noun, course, means, ditch)
1
dugout(ditch, channel, mine, pit)
1
gorge(ditch, channel, pit, vale)
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APASmart Define. (2015). trough thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/trough/thesaurus/synonyms
ChicagoSmart Define. 2015. "trough thesaurus" https://smartdefine.org/trough/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, trough thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/trough/thesaurus/synonyms>.
MLASmart Define. "trough thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/trough/thesaurus/synonyms>