3
cork
3
ether
3
exhaust pipe(noun, pipe, smoke-stack)
3
fireplace(noun, opening, fan, vent, pipe)
3
fluke
3
gossamer
3
hearth(noun, opening, fan, vent, pipe)
3
mote
3
straw
3
tunnel(noun, opening, beam, rod, duct)
2
conduit(noun, beam, tunnel, rod, pipe)
2
fluff
2
fumarole
2
ingle
2
smoke duct(noun, pipe)
2
windpipe(noun, airpipe)
1
adit
1
air pipe(expression, idiom, opening, airpipe)
1
aperture(noun, opening, fan, vent, outlet)
1
balloon
11 years ago|6.1k views|share |citing 
APASmart Define. (2015). flue thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/flue/thesaurus/synonyms
ChicagoSmart Define. 2015. "flue thesaurus" https://smartdefine.org/flue/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, flue thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/flue/thesaurus/synonyms>.
MLASmart Define. "flue thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/flue/thesaurus/synonyms>