Sum
Sum verb - To combine (numbers) into a single sum.
Usage example: can sum figures in his head faster than I can punch them into a calculator
Summate
Summate verb - To combine (numbers) into a single sum.
Usage example: summate all of the expenses that you incurred on your last business trip
Mutual synonyms
Cite this Source
Summate and Sum. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/sum/summate
Sum & Summate. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/sum/summate>.
Summate or Sum. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/sum/summate.
Google Ngram Viewer shows how "sum" and "summate" have occurred on timeline