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  1. Dictionary
    Se·cu·ri·ty
    /səˈkyo͝orədē/

    noun

    • 1. the state of being free from danger or threat: "the system is designed to provide maximum security against toxic spills"
    • 2. a thing deposited or pledged as a guarantee of the fulfillment of an undertaking or the repayment of a loan, to be forfeited in case of default. Similar guaranteecollateralsuretypledge