Bottomless pit
Cavity and bottomless pit are semantically related. In some cases you can use "Cavity" instead a noun phrase "Bottomless pit".
Cavity
Cavity noun - A sunken area forming a separate space.
Bottomless pit and cavity are semantically related. Sometimes you can use "Bottomless pit" instead a noun "Cavity".
Mutual synonyms
Both terms in one sentence
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His chest cavity is a seemingly bottomless pit of storage capacity.
Source: Do-Anything Robot
Cite this Source
Cavity and Bottomless pit. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/bottomless_pit/cavity
Bottomless pit & Cavity. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/bottomless_pit/cavity>.
Cavity or Bottomless pit. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/bottomless_pit/cavity.
Google Ngram Viewer shows how "bottomless pit" and "cavity" have occurred on timeline