49 entries under opening topic. ×

1
hole(noun, beam, fan, vent)
1
main
1
orifice(noun, fan, vent, outlet)
1
outlet(noun, fan, shaft, vent)
1
pit
1
tap
1
ventilator(fan, vent, outlet, pipe)
0
adjutage
0
ajutage
0
avenue(fan, vent, outlet)
0
drain(fan, vent, outlet)
0
escape
0
exhaust
0
exit(fan, vent, outlet)
0
furnace(noun, fan, vent, pipe)
0
gallery
0
gap
0
gut
0
mine
0
ostium
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APASmart Define. (2015). flue thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/flue/thesaurus/synonyms
ChicagoSmart Define. 2015. "flue thesaurus" https://smartdefine.org/flue/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, flue thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/flue/thesaurus/synonyms>.
MLASmart Define. "flue thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/flue/thesaurus/synonyms>