Back-up
Mutual synonyms
Related pairs
- substitute and back-up
- substitute and emergency
- reserve and back-up
- reserve and emergency
- spare and back-up
- spare and emergency
- alternative and back-up
- alternative and emergency
- secondary and back-up
- secondary and emergency
- in reserve and back-up
- in reserve and emergency
- auxiliary and back-up
- auxiliary and emergency
Both words in one sentence
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Code 30 signals an emergency requiring back-up on police radio and is often used for Homicide.
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Kim then remembered that her class ring had a back-up Kimmunicator that also doubled as a laser torch and emergency rebreather!
Source: Comm Links - Emergency Weapon: In more modern times, a first-person-shooter protagonist is likely to wield some kind of back-up melee weapon just in case the main blaster runs out of juice.
Source: Choice of Two Weapons
Cite this Source
Emergency and Back-up. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/back-up/emergency
Back-up & Emergency. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/back-up/emergency>.
Emergency or Back-up. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/back-up/emergency.