Keep
Wall up
Mutual synonyms
Both terms in one sentence
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The Riddler will make a few of his challenges easier if you keep failing at them; during "Flight School", for example, he'll open part of a wall up, replacing the current jump you had to do with a much more achievable one.
Cite this Source
Wall up and Keep. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/keep/wall_up
Keep & Wall up. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/keep/wall_up>.
Wall up or Keep. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/keep/wall_up.
Google Ngram Viewer shows how "keep" and "wall up" have occurred on timeline