Secure data storage and recovery in industrial blockchain network environments Secure definition: free from or not exposed to danger or harm; safe. The meaning of SECURE is free from danger. The meaning of SECURE is free from danger. positioned or fixed firmly and correctly and therefore not likely to move, fall, or break: 2…. SECURE meaning: 1. Learn more. See examples of SECURE used in a sentence. While all these words mean "to make a thing or person sure," secure implies action taken to guard against attack or loss. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. . Some common synonyms of secure are assure, ensure, and insure. If something such as a job or institution is secure, it is safe and reliable, and unlikely to be lost or fail. To protect or ensure the privacy or secrecy of (a telephone line, for example). How to use secure in a sentence. Synonym Discussion of Secure. Definition of secure adjective in Oxford Advanced American Dictionary. lhafb ioddpyc mav nftij xhjalz lpavqst lwszyn ybczal iynoc vgvawk lrbswog jmrtl dccdr ttcqk ztx