115 entries under opening topic. ×

6
cut(noun, break, place, crack, rest)
6
door(noun, breach, box, hole)
6
entrance(noun, entrance)
6
rift(noun, break, cut, crack, split)
6
split(noun, break, cut, crack)
5
leak(noun, escape, outflow, seepage)
5
space(noun, break, place, cut, crack)
5
pore
5
rupture(noun, break, cut, crack, split)
4
cavity(noun, break, cut, breach)
4
hiatus(noun, break, cut, crack, split)
4
rent(noun, break, cut, crack, split)
4
interstice(noun, break, cut, crack, rest)
4
interval(noun, break, cut, crack, split)
4
pinhole(noun, space, tear, hole)
3
exit(building, fan, passage, entrance)
3
foramen(noun, break, cut, crack)
3
channel(noun, break, passage, vent)
3
cranny(noun, break, cut, crack, split)
3
discontinuity(noun, break, cut, crack, rest)
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APASmart Define. (2016). aperture thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/aperture/thesaurus/synonyms
ChicagoSmart Define. 2016. "aperture thesaurus" https://smartdefine.org/aperture/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, aperture thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/aperture/thesaurus/synonyms>.
MLASmart Define. "aperture thesaurus" 9 March 2016. Web. 25 September 2026. <https://smartdefine.org/aperture/thesaurus/synonyms>