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Synonyms & Antonyms of back (up)
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backup
nounSynonyms of backup (Entry 2 of 3)
- there was the inevitable backup of travelers trying to pass through airport security
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- you didn't get the lead position, but you can be the backup to the chosen singer
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backup
adjectiveSynonyms & Antonyms of backup (Entry 3 of 3)
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“Back (up).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/back%20%28up%29. Accessed 15 May. 2021.
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The first known use of back (up) was in 1801
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