32 entries under noun topic. ×

14
conduit(drain, ditch, channel, passage)
10
channel(ditch, conduit)
9
drain(ditch, off, conduit)
9
sewer(drain, flow, channel, passage)
8
gutter(ditch, conduit)
8
canal(ditch, conduit)
8
watercourse(drain, flow, ditch, channel)
8
aqueduct
8
duct(drain, ditch, channel, conduit)
7
gully(ditch, conduit, ravine)
6
ditch(drain, channel, conduit, tube)
6
trench(drain, channel, conduit, valley)
5
pipe(drain, ditch, channel, conduit)
4
cloaca
4
sluice
4
waterway
3
passage
3
cesspit
1
cesspool(drain, gutter, sewer)
1
outlet(channel, tube, canal, gutter)
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APASmart Define. (2015). culvert thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/culvert/thesaurus/synonyms
ChicagoSmart Define. 2015. "culvert thesaurus" https://smartdefine.org/culvert/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, culvert thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/culvert/thesaurus/synonyms>.
MLASmart Define. "culvert thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/culvert/thesaurus/synonyms>