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Definitions

back up

VERB
move backward
Synonyms
Antonyms


ADJECTIVE
substitute
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"The police are on site. Back-up security teams have been deployed to reinforce safety on the line," it added.

From Barron's • Dec. 27, 2025

Back-up could come from the likes of Matthew Potts, who has been in fine form for Durham, and Saqib Mahmood after his recovery from a long-term back injury.

From BBC • May 14, 2023

Released in time for Valentine’s Day, the movie is a rom-com “homecoming” for Lopez, known for films like “Maid in Manhattan”, “The Wedding Planner” and “The Back-up Plan”.

From Reuters • Feb. 9, 2022

Suns: Back-up point guard Cameron Payne was out for the Suns.

From Seattle Times • Oct. 23, 2021

Back-up generators and evacuation chairs could be installed in buildings where people with disabilities live.

From The Verge • Feb. 26, 2021




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