| gutter(noun, drain, ditch, conduit) | |
| cloaca(noun, drain, uncleanness, conduit) | |
| channel(noun, line, water, way, course) | |
| drain(noun, uncleanness, off, conduit) | |
| conduit(noun, line, way, drain, means) | |
| cesspool(noun, drain, uncleanness) | |
| duct(noun, line, way, drain, means) | |
| trench(noun, drain, conduit) | |
| canal(noun, line, way, course, means) | |
| culvert(noun, conduit) | |
| ditch(noun, conduit) | |
| sewerage | |
| pipe(noun, course, drain, means, route) | |
| gully(noun, conduit) | |
| artery(noun, channel, conduit) | |
| bog | |
| aqueduct(noun, course, means, race, flow) | |
| seamstress | |
| septic tank(noun, expression, idiom, system, drain) | |
| toilet(noun, uncleanness) |
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| APA | Smart Define. (2015). sewer thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/sewer/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "sewer thesaurus" https://smartdefine.org/sewer/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, sewer thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/sewer/thesaurus/synonyms>. |
| MLA | Smart Define. "sewer thesaurus" 1 December 2015. Web. 20 September 2026. <https://smartdefine.org/sewer/thesaurus/synonyms> |