Definition of "lockbox" []

• A box with a built-in lock; a safe. (noun)

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• "Mocked for repeatedly using the term lockbox to suggest that funding for Social Security and Medicare should be untouchable, Gore was caricatured, not without reason, as a finicky policy wonk."
• "My key for my smaller lockbox is on my car key-ring."
• "Gore wanted to put the surplus in a "lockbox" - sort of like those savings accounts that average Americans are supposed to build up for themselves, but, to the enduring consternation of sages such as Greenspan, they never seem to build."