Definition of secure adjective from the Oxford Advanced Learner's Dictionary

        

    secure

     adjective
    adjective
    BrE BrE//sɪˈkjʊə(r)//
     
    ; NAmE NAmE//səˈkjʊr//
     
    Happiness, Confident
     
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    happy/confident
  1. 1  feeling happy and confident about yourself or a particular situation At last they were able to feel secure about the future. She finished the match, secure in the knowledge that she was through to the next round. opposite insecure See related entries: Happiness, Confident
  2. certain/safe
  3. 2  likely to continue or be successful for a long time synonym safe a secure job/income It's not a very secure way to make a living. The future of the company looks secure. opposite insecure
  4. 3  secure (against/from something) that cannot be affected or harmed by something Information must be stored so that it is secure from accidental deletion.
  5. building/door/room
  6. 4  guarded and/or made stronger so that it is difficult for people to enter or leave Check that all windows and doors have been made as secure as possible. a secure unit for child offenders The building is secure against intruders. opposite insecure
  7. firm
  8. 5  not likely to move, fall down, etc. synonym stable The aerial doesn't look very secure to me. It was difficult to maintain a secure foothold on the ice. (figurative) Our relationship was now on a more secure footing. opposite insecure
  9. Word Origin mid 16th cent. (in the sense ‘feeling no apprehension’): from Latin securus, from se- ‘without’ + cura ‘care’.Extra examples It’s important to keep your documents secure. She felt safe and secure in his arms. The house has been made secure against intruders. We left, secure in the knowledge that Mason was safe at home with his grandmother. It’s not a very secure way to make a living. Police have warned the public to keep valuables secure. She had a secure job with a big, successful company. The aerial doesn’t look very secure to me. The roof was secure against the coming winter rains.
See the Oxford Advanced American Dictionary entry: secure

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