Guard
Keep up
Keep up verb - To keep in good condition.
Usage example: kept the house up while the owners were gone
Mutual synonyms
Both terms in one sentence
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Glass Cannon: Constantine is utterly unstoppable in a fight as long as he can keep up his momentum, taking out guard after guard before they can react.
Source: Film / Muppets Most Wanted -
Most famously is his creation of a convoluted card game with the goal of confusing the guard trying to keep up with the rules Kirk is making up on the fly.
Source: The Guards Must Be Crazy -
Their strength is no longer adequate to guard against his attacks, and while they can still predict his movements, he's too fast for them to keep up with them.
Source: I Am Not Left-Handed
Cite this Source
Keep up and Guard. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/guard/keep_up
Guard & Keep up. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/guard/keep_up>.
Keep up or Guard. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/guard/keep_up.
Google Ngram Viewer shows how "guard" and "keep up" have occurred on timeline