Backup and Supplementary

Backup

Backup noun - A crowded mass (as of cars) that impedes or blocks movement.
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Synonyms for Backup

Supplementary and backup are semantically related in increase topic. In some cases you can use "Supplementary" instead an adjective "Backup".

Nearby Word: backing

Supplementary

Supplementary adjective - Available to supply something extra when needed.
Usage example: the teacher's edition of the textbook comes with a lot of supplementary material

Backup and supplementary are semantically related in increase topic. You can use "Backup" instead an adjective "Supplementary".

Both words in one sentence

  • Video Game / X-COM The 2012 remake does away with inventory entirely, letting you choose a main weapon, backup weapon, armor and supplementary equipment.
Cite this Source
Supplementary and Backup. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/backup/supplementary
Backup & Supplementary. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/backup/supplementary>.
Supplementary or Backup. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/backup/supplementary.
Google Ngram Viewer shows how "backup" and "supplementary" have occurred on timeline