Keep up
Keep up verb - To continue to operate or to meet one's needs.
Prop up
Prop up verb - To hold up or serve as a foundation for.
Mutual synonyms
Cite this Source
Prop up and Keep up. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/keep_up/prop_up
Keep up & Prop up. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/keep_up/prop_up>.
Prop up or Keep up. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/keep_up/prop_up.
Google Ngram Viewer shows how "keep up" and "prop up" have occurred on timeline