Mark down and Prolong
Opposite meaning terms
Mark down
Mark down verb - To diminish the price or value of.
Prolong
Cite this Source
Prolong and Mark down. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/mark_down/prolong
Mark down & Prolong. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/mark_down/prolong>.
Prolong or Mark down. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/mark_down/prolong.
Google Ngram Viewer shows how "mark down" and "prolong" have occurred on timeline