2
caldera(noun, pit)
2
caser
2
cavern
2
chester
2
crevice(noun, hole, perforation, orifice, grommet)
2
ditch(noun, well, hole, hollow)
2
fissure(noun, break, cut, crack, space)
2
gap(noun, break, cut, crack, space)
2
mouth(noun, pit)
2
notch(depression, hollow, scrape, indentation, chip)
2
opening(noun, space, void, hole, hollow)
2
recess(noun, cup, indentation, cavity)
2
scoop(noun, break, cut, crack, depression)
2
scratch(mark, depression, blemish, hollow, scrape)
2
sink(noun, depression, impression, dip, hollow)
2
sinus(noun, space, hole, hollow, pocket)
2
split
2
valley(noun, depression, impression, dip, hollow)
2
vent(noun, break, cut, crack, opening)
1
alveolation
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APASmart Define. (2015). crater thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/crater/thesaurus/synonyms
ChicagoSmart Define. 2015. "crater thesaurus" https://smartdefine.org/crater/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, crater thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/crater/thesaurus/synonyms>.
MLASmart Define. "crater thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/crater/thesaurus/synonyms>