Keep up
Keep up verb - To continue to operate or to meet one's needs.
Cite this Source
Reserve and Keep up. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/keep_up/reserve
Keep up & Reserve. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/keep_up/reserve>.
Reserve or Keep up. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/keep_up/reserve.
Google Ngram Viewer shows how "keep up" and "reserve" have occurred on timeline