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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.

Back-up keepers Mark Gillespie, 34, and John Ruddy, 39, could also leave.

From BBC • Apr. 21, 2026

"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

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

Back-up quarterback Asher O’Hara threw a 1-yard TD pass to Isaiah Gable to cap the scoring with 2:33 to play.

From Seattle Times • Dec. 4, 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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