26
trench(noun, depression, ditch, channel, groove)
19
ditch(noun, depression, channel, pit, conduit)
18
furrow(noun, depression, ditch, channel, scrape)
15
hollow(noun, area, depression, empty, ditch)
15
dip(noun, decline, low, depression, channel)
14
channel(noun, line, water, plain, depression)
13
gutter(noun, drain, ditch, channel, pit)
13
groove(noun, drain, means, dip, channel)
10
canal(noun, depression, course, drain, means)
9
moat(noun, depression, drain, ditch, channel)
9
depression(noun, decline, low, ditch, scrape)
9
bowl
8
chute(noun, shaft, slope, tube, tray)
8
hole(noun, mine, pit, quarry)
8
pit(noun, depression, drain, hollow, ditch)
8
rut(noun, decline, low, failure, ditch)
7
cup(noun, depression, dip, channel, bottom)
7
cavity(noun, depression, hollow, scrape, mine)
7
crater(noun, depression, hollow, channel, scrape)
7
manger(noun, depression, gutter)
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APASmart Define. (2015). trough thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/trough/thesaurus/synonyms
ChicagoSmart Define. 2015. "trough thesaurus" https://smartdefine.org/trough/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, trough thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/trough/thesaurus/synonyms>.
MLASmart Define. "trough thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/trough/thesaurus/synonyms>