48 entries under opening topic. ×

2
spout(fan, passage, vent, outlet)
1
duct(line, way, means, trail)
1
gate(noun, advance, progress, line, approach)
1
gateway(noun, progress, line, course)
1
hall(square, entry, doorway, courtyard)
1
ingress(noun, progress, line, connection, approach)
1
lobby(method, square, entry, doorway)
1
pipe(means, fan, passage, medium)
0
archway(entry, doorway)
0
chimney(fan, vent, outlet)
0
doorway
0
drain(fan, vent, outlet)
0
entrance hall(expression, entry, doorway)
0
entryway(entry, doorway)
0
flue(fan, vent, outlet)
0
foyer(square, entry, doorway, courtyard)
0
gap
0
hallway(entry, doorway)
0
hole(fan, passage, vent, outlet)
0
orifice(fan, passage, vent, outlet)
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APASmart Define. (2015). avenue thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/avenue/thesaurus/synonyms
ChicagoSmart Define. 2015. "avenue thesaurus" https://smartdefine.org/avenue/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, avenue thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/avenue/thesaurus/synonyms>.
MLASmart Define. "avenue thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/avenue/thesaurus/synonyms>