Synonyms and Antonyms of backup
1 a crowded mass (as of cars) that impedes or blocks movement there was the inevitable backup of travelers trying to pass through airport security Synonyms of backup jam, bottleneck, jam-up, logjam, snarl, tailback [British], tie-upWords Related to backup tangle; gridlock, lock; congestion, traffic; crawl, delay, slowdown, stoppage
2 a person or thing that takes the place of another you didn't get the lead position, but you can be the backup to the chosen singer Synonyms of backup substitute, cover, designated hitter, fill-in, locum tenens, pinch hitter, relief, replacement, reserve, stand-in, subWords Related to backup alternate, understudy; apology, makeshift, stopgap; agent, assignee, attorney, commissary, delegate, deputy, envoy, factor, procurator, proxy, rep, representative, surrogate; assistant, reliever, second; successor, superseder
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