Not liable or likely to fail, give way, etc.: He had a secure grip on the rope. Positioned or fixed firmly and correctly and therefore not likely to move, fall, or break:
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They kept the jewels secure in the bank. As an adjective, secure refers to the state of being safe or protected from harm, whether physically, emotionally, or financially. To protect or ensure the privacy or secrecy of (a telephone line, for example).
Of or relating to security:
The meaning of secure is free from danger. How to use secure in a sentence.