76 entries under opening topic. ×

6
door(noun, progress, line, bar, connection)
6
gallery(noun, bank, room, entrance)
6
hole
6
vestibule(noun, receptacle, bank, room)
5
gap(noun, break, cut, crack)
5
tunnel(noun, passageway)
4
adit(noun, method)
4
canal(noun, sound, line, way, course)
4
egress(escape, retreat, departure, exit)
4
foyer(noun, bank, room, entrance)
4
gully
4
vent(noun, break, cut, crack)
4
way in(expression, approach, entrance, entry)
3
chimney
3
cut(noun, piece, way, space)
3
doorway(noun, bar, exit, entrance)
3
fissure(noun, space, scratch, wound)
3
flue(noun, pipe)
3
gateway(noun, progress, line, bar, course)
3
ingress(noun, sound, progress, line, connection)
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APASmart Define. (2016). passage thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/passage/thesaurus/synonyms
ChicagoSmart Define. 2016. "passage thesaurus" https://smartdefine.org/passage/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, passage thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/passage/thesaurus/synonyms>.
MLASmart Define. "passage thesaurus" 30 March 2016. Web. 25 September 2026. <https://smartdefine.org/passage/thesaurus/synonyms>