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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.

However, at some point—whether that’s this month, this year, or light years into the future—SpaceX will need to back up its valuation with the numbers.

From Barron's • Jun. 16, 2026

Qatar is likely to gradually restart operations in July and August, ramping up production through September and October and getting back up to about 80% of its preconflict LNG capacity by November, Munton said.

From MarketWatch • Jun. 16, 2026

To bring the mood back up, Rodrigo finished the night by playing her new single, “Stupid Song.”

From Los Angeles Times • Jun. 15, 2026

Eli Sussman, a chef and food influencer, called Knicks fever “a singular opportunity that may not come back up again.”

From The Wall Street Journal • Jun. 13, 2026

As soon as he could, he looked back up at Chip.

From "Found" by Margaret Peterson Haddix




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