security Definition

  • 1the state of being free from danger or threat
  • 2measures taken to ensure the safety and protection of people, organizations, or assets
  • 3a 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

Using security: Examples

Take a moment to familiarize yourself with how "security" can be used in various situations through the following examples!

  • Example

    The security of the building was compromised when the alarm system failed.

  • Example

    The company invested in security measures to prevent cyber attacks.

  • Example

    He put up his car as security for the loan.

  • Example

    The security deposit will be returned after the apartment is vacated.

security Synonyms and Antonyms

Antonyms for security

Idioms Using security

  • to increase the level of protection or safety


    After the break-in, they decided to tighten security by installing cameras and hiring more guards.

  • an incident where security measures are compromised, allowing unauthorized access to protected information or areas


    The company suffered a security breach that exposed sensitive customer data.

  • official permission to access classified information or restricted areas


    He had to undergo a background check before he could get a security clearance for his new job.

Phrases with security

  • the assurance that one's job is secure and will not be terminated


    Many workers are concerned about their job security during the pandemic.

  • social security

    a government program that provides financial assistance to people who are retired, disabled, or unemployed


    She relies on social security to make ends meet.

  • something that provides a sense of comfort or security, especially in difficult situations


    Her teddy bear was her security blanket when she was scared.

Origins of security

from Latin 'securitas', meaning 'freedom from care'


Summary: security in Brief

The term 'security' [sɪˈkjʊərɪti] refers to the state of being free from danger or threat, as well as measures taken to ensure safety and protection. It can also refer to something deposited as a guarantee. Examples include 'The security of the building was compromised,' 'He put up his car as security,' and 'The company invested in security measures.' Phrases like 'job security' and 'social security' denote financial stability, while idioms like 'tighten security' and 'security breach' refer to increasing or compromising safety measures.

How do native speakers use this expression?