Contend
Contend verb - To engage in a contest.
Invalidate and contend are semantically related. In some cases you can use "Invalidate" instead a verb "Contend".
Invalidate
Invalidate verb - To put an end to by formal action.
Contend and invalidate are semantically related. Sometimes you can use "Contend" instead a verb "Invalidate".
Mutual synonyms
Cite this Source
Invalidate and Contend. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/contend/invalidate
Contend & Invalidate. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/contend/invalidate>.
Invalidate or Contend. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/contend/invalidate.
Google Ngram Viewer shows how "contend" and "invalidate" have occurred on timeline