Cavity
Cavity noun - A sunken area forming a separate space.
Lips
Cite this Source
Lips and Cavity. (2016). Retrieved 2026, July 31, from https://thesaurus.plus/related/cavity/lips
Cavity & Lips. N.p., 2016. Web. 31 Jul. 2026. <https://thesaurus.plus/related/cavity/lips>.
Lips or Cavity. 2016. Accessed July 31, 2026. https://thesaurus.plus/related/cavity/lips.
Google Ngram Viewer shows how "cavity" and "lips" have occurred on timeline