Daily Word Play

backup

Noun
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backup

support or reinforcement; a copy of data for safety

Synonyms:support, assistance, substitute, reserve
Antonyms:main, primary, principal

What Makes This Word Tick

Backup means support or reinforcement, and it can also mean a safety copy of data. In both uses, the heart of the word is reassurance: something is there in case the first plan fails. It’s about protection through redundancy—extra help or an extra copy.

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