Computer security, also known as cybersecurity or IT security, refers to the security of computing devices such as computers and smartphones, as well as computer networks such as private …

SECURITY meaning: 1 : the state of being protected or safe from harm often used before another noun; 2 : things done to make people or places safe

The meaning of SECURITY is the quality or state of being secure. How to use security in a sentence.

If something is security for a loan, you promise to give that thing to the person who lends you money, if you fail to pay the money back.

SECURITY meaning: 1. protection of a person, building, organization, or country against threats such as crime or…. Learn more.

Definition of security noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Something that gives or assures safety, as: a. A group or department of private guards: Call building security if a visitor acts suspicious. b. Measures adopted by a government to prevent …

May 30, 2025 · Security in IT is the method of preventing, defending and mitigating cyberattacks. Learn the different types of security and the best security principles.

There are 20 meanings listed in OED's entry for the noun security, one of which is labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

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