1
discontinuity(noun, break, opening, breach, hole)
1
distance(noun, hole, hollow, gap)
1
division(noun, break, opening, breach, hole)
1
donga
1
door(opening, breach, box, hole, gap)
1
embouchement
1
embrasure(noun, break, depression, hole, hollow)
1
empty space(expression, opening, space, void, hollow)
1
endocarp
1
eyelet(noun, break, cut, crack, opening)
1
fault
1
fenestra
1
firth
1
fistula
1
fly trap
1
fold
1
fontanel
1
funnel
1
funnel chest
1
gape
10 years ago|13k views|share |citing 
APASmart Define. (2015). cavity thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/cavity/thesaurus/synonyms
ChicagoSmart Define. 2015. "cavity thesaurus" https://smartdefine.org/cavity/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, cavity thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/cavity/thesaurus/synonyms>.
MLASmart Define. "cavity thesaurus" 17 December 2015. Web. 24 September 2026. <https://smartdefine.org/cavity/thesaurus/synonyms>