Definition of "use up" []

• To consume, deplete or exhaust (verb)
• To take or occupy (verb)

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• "Anastasia Vasilakis Apple's new iCloud Internet services could eliminate the need for consumers to use up chunks of storage on their iPhones and iPods."
• "Instead of making things only when people needed them, like holes in the wall did, Rusty factories had churned out vast quantities of stuffthe whole world in a giant competition to use up resources as quickly as possible."