| hole(noun, opening, beam, fan, vent) | |
| hub | |
| influenza | |
| inglenook | |
| ingleside | |
| kapok | |
| lint | |
| main | |
| nostril(noun, airpipe) | |
| nozzle(noun, airpipe) | |
| opening(noun, fan, vent, outlet) | |
| orifice(noun, opening, fan, vent, outlet) | |
| outlet(noun, opening, fan, shaft, vent) | |
| pentode | |
| pile | |
| pillow | |
| pit | |
| plush | |
| pudding | |
| puff |
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| APA | Smart Define. (2015). flue thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/flue/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "flue thesaurus" https://smartdefine.org/flue/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, flue thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/flue/thesaurus/synonyms>. |
| MLA | Smart Define. "flue thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/flue/thesaurus/synonyms> |