Firming up
Strengthening and firming up are semantically related. In some cases you can use "Strengthening" instead a noun "Firming up".
Strengthening
Strengthening noun - The act of increasing the strength of something.
Firming up and strengthening are semantically related. Sometimes you can use "Firming up" instead a noun "Strengthening".
Cite this Source
Strengthening and Firming up. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/firming_up/strengthening
Firming up & Strengthening. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/firming_up/strengthening>.
Strengthening or Firming up. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/firming_up/strengthening.
Google Ngram Viewer shows how "firming up" and "strengthening" have occurred on timeline