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security

/sɪˈkjʊərəti/
noun★Intermediate💡 state of being free from danger

“The bank installed high-tech cameras to improve security.”

The bank added advanced surveillance to reduce risks of theft or unauthorized access.

formal

protection against threats, harm, or unauthorized access

Airport security has tightened since the incident.

Airport measures to prevent threats have become stricter.

She works in corporate security handling data protection.

Her job focuses on safeguarding company information from breaches.

💡

Often used in contexts like national security, cybersecurity, or personal safety.

formal

something that provides protection, such as a guard or lock

The museum’s security system includes motion sensors.

The museum uses devices that detect movement to prevent theft.

💡

Refers to physical or technological measures.

📈Investment
Finance

a certificate representing ownership of stocks or bonds

He invested in government securities for low risk.

He bought bonds issued by the government to minimize financial risk.

💡

Common in finance and investment contexts.

Collocations

national securityprotection of a country from threatsdata securitymeasures to protect digital informationpersonal securitysafety measures for individualssecurity guarda person hired to protect property or peoplesecurity systema setup of devices like alarms or cameras

Synonyms

safetyprotectionsafeguardshield

Antonyms

vulnerabilityexposuredangerrisk

Related Phrases

security blanketphrase
something that provides emotional comfort in times of stress
security detailphrase
a team assigned to protect a person or location

💡Pro Tip

Distinguish from 'safety'

'Security' often implies protection against intentional threats (e.g., theft, espionage), while 'safety' refers to general protection from harm (e.g., accidents).

⚡Gold Rule

Use 'security' for active protection

When describing systems, personnel, or measures designed to prevent harm or unauthorized access, use 'security'.

📖Word Origin

From Latin 'securitas', meaning 'freedom from care', derived from 'securus' (secure, safe). Entered English via Old French 'seurte' in the 15th century.

📝Usage Notes

Used broadly in everyday and technical contexts. In finance, 'security' refers to tradable financial assets like stocks or bonds.

Word Breakdown

se-
prefix meaning 'without' or 'free from'
prefix
+
-cur-
root from Latin 'cura' (care)
root
+
-ity
suffix forming abstract nouns
suffix
English Dictionary

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Words of the Year

The most notable words that defined each year. Discover the vocabulary that shaped our world.