Strengthen
Strengthen verb - To increase the ability of (as a muscle) to exert physical force.
Usage example: the army makes new recruits run for miles in order to strengthen them
Toughen is a synonym for strengthen in fortify topic. In some cases you can use "Toughen" instead a verb "Strengthen", when it comes to topics like encourage, strong, powerful. popular alternative
Nearby Words: strength, strengthening
Toughen
Toughen verb - To increase the ability of (as a muscle) to exert physical force.
Usage example: weight lifting will help toughen those flabby muscles of yours
Strengthen is a synonym for toughen in harden topic. You can use "Strengthen" instead a verb "Toughen", if it concerns topics such as strong. popular alternative
Mutual synonyms
Related pairs
Cite this Source
Toughen and Strengthen. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/strengthen/toughen
Strengthen & Toughen. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/strengthen/toughen>.
Toughen or Strengthen. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/strengthen/toughen.
Google Ngram Viewer shows how "strengthen" and "toughen" have occurred on timeline