Backup
Backup noun - A person or thing that takes the place of another.
Usage example: you didn't get the lead position, but you can be the backup to the chosen singer
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Synonyms for Backup
Fill-in is a synonym for backup. In some cases you can use "Fill-in" instead the word "Backup" as a noun or an adjective. popular alternative
Nearby Word: backing
Fill-in
Fill-in noun - A person or thing that takes the place of another.
Usage example: I'm just a fill-in, so I have no idea where office supplies are kept
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Synonyms for Fill-in
Backup is a synonym for fill-in in substitute topic. You can use "Backup" instead the phrase "Fill-in" as a noun or an adjective. popular alternative
Mutual synonyms
Cite this Source
Fill-in and Backup. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/backup/fill-in
Backup & Fill-in. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/backup/fill-in>.
Fill-in or Backup. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/backup/fill-in.
