Cavity
Cavity noun - A sunken area forming a separate space.
Hard stuff and cavity are semantically related. In some cases you can use "Hard stuff" instead a noun "Cavity".
Hard stuff
Cavity and hard stuff are semantically related. Sometimes you can use "Cavity" instead a noun phrase "Hard stuff".
Mutual synonyms
Cite this Source
Hard stuff and Cavity. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/cavity/hard_stuff
Cavity & Hard stuff. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/cavity/hard_stuff>.
Hard stuff or Cavity. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/cavity/hard_stuff.
Google Ngram Viewer shows how "cavity" and "hard stuff" have occurred on timeline