Sustain
Sustain verb - To hold up or serve as a foundation for.
Usage example: that old chair won't sustain your weight
Underlie and sustain are semantically related. In some cases you can use "Underlie" instead a verb "Sustain".
Nearby Word: sustaining
Underlie
Underlie verb - Lie underneath.
Cite this Source
Underlie and Sustain. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/sustain/underlie
Sustain & Underlie. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/sustain/underlie>.
Underlie or Sustain. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/sustain/underlie.
Google Ngram Viewer shows how "sustain" and "underlie" have occurred on timeline