Back up
Back up verb - Move backwards from a certain position.
Supporting is a synonym for back up. In some cases you can use "Supporting" instead an adjective "Back up".
Supporting
Supporting adjective - Serving to give support to the truth or factualness of something.
Back up is a synonym for supporting. Sometimes you can use "Back up" instead the word "Supporting" as a verb or an adjective.
Mutual synonyms
Related pairs
Both terms in one sentence
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Thankfully, Autumn Games helped them back up by supporting their new independent company, Lab Zero Games, as reflected on the newly-patched intro screen of the game.
Source: Video Game / Skullgirls - Sometimes overlaps with Big Damn Heroes, but in this case, it's the supporting heroes that come to back up the protagonist when he's having a rough fight alone.
Source: Sorry I'm Late
Cite this Source
Supporting and Back up. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/back_up/supporting
Back up & Supporting. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/back_up/supporting>.
Supporting or Back up. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/back_up/supporting.
Google Ngram Viewer shows how "back up" and "supporting" have occurred on timeline