| stack(noun, opening, vent, pipe) | |
| duct(noun, opening, beam, vent) | |
| pipe(noun, opening, shaft, vent) | |
| fireplace(noun, opening, vent, pipe) | |
| hearth(noun, opening, vent, pipe) | |
| aperture(noun, opening, vent, outlet) | |
| hole(noun, opening, beam, vent) | |
| opening(noun, vent, outlet) | |
| orifice(noun, opening, vent, outlet) | |
| outlet(noun, opening, shaft, vent) | |
| ventilator(opening, vent, outlet, pipe) | |
| avenue(opening, vent, outlet) | |
| drain(opening, vent, outlet) | |
| exit(opening, vent, outlet) | |
| furnace(noun, opening, vent, pipe) | |
| split(opening, vent, outlet) | |
| spout(opening, vent, outlet) |
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| APA | Smart Define. (2015). flue thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/flue/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "flue thesaurus" https://smartdefine.org/flue/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, flue thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/flue/thesaurus/synonyms>. |
| MLA | Smart Define. "flue thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/flue/thesaurus/synonyms> |