49 entries under opening topic. ×

13
chimney(noun, beam, tunnel, rod)
11
vent(noun, beam, tunnel, rod)
11
funnel(noun, airpipe, smoke-stack)
10
shaft(noun, something, vent, tunnel)
8
smokestack(noun, pipe, chimney, funnel)
8
stack(noun, fan, vent, pipe)
5
duct(noun, beam, fan, vent)
4
passage(noun, pipe)
4
channel(noun, pipe)
4
pipe(noun, fan, shaft, vent)
4
tube(noun, pipe, airpipe)
3
fireplace(noun, fan, vent, pipe)
3
hearth(noun, fan, vent, pipe)
3
tunnel(noun, beam, rod, duct)
1
adit
1
air pipe(expression, idiom, airpipe)
1
aperture(noun, fan, vent, outlet)
1
canal
1
fistula
1
gully
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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>