Back-up
Extra
Extra adjective - Being over what is needed.
Mutual synonyms
Both words in one sentence
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Despotism Justifies the Means: Torquemada unveils his back-up Weapon of Mass Destruction to destroy all extra-terrestrials at once in the final arc.
Source: Comic Book / Nemesis the Warlock - Nemesis the Warlock: Torquemada unveils his back-up Weapon of Mass Destruction to destroy all extra-terrestrials at once in the final arc.
Source: Despotism Justifies the Means -
Then there were the few times when he was using remote-controlled suits or simply having his friends put on extra suits to give him some back-up.
Source: Doppelgänger Spin
Cite this Source
Extra and Back-up. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/back-up/extra
Back-up & Extra. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/back-up/extra>.
Extra or Back-up. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/back-up/extra.