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Definition of security

security

/səˈkjʊr.ə.ti/
se · cu · ri · ty

Adverb:securely
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Plural:securities
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Adjective:secure
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security Lexical Profile

security Game Scores & Validity

• noun

1

The state of being free from danger, threat, or harm, as well as the measures taken to guard a person, building, organization, or country against crime or unauthorized access.

Example

"The museum upgraded its electronic security to protect the priceless paintings on display."


2

The personnel or department within an organization responsible for protecting property, maintaining order, and ensuring the safety of staff and visitors.

Example

"Please check in with security at the front desk to receive your visitor badge."


3

Confidence and freedom from anxiety or doubt regarding one's personal wellbeing, livelihood, or future stability.

Example

"A steady income provides a sense of financial security for the entire family."


4

A tradable financial asset, such as a stock, bond, or debenture, that holds monetary value and represents ownership in a corporation or a creditor relationship with a governmental body.

Example

"The investment firm specializes in trading government securities and corporate bonds."


5

Valuable property or financial assets pledged to a lender as a guarantee that a loan will be repaid.

Example

"They offered their commercial property as security for the business loan."

Synonyms
View all synonyms for security
Antonyms
View all antonyms for security

Word Nuance & Usage

'Safety' generally refers to protection from accidental hazards or natural harms, whereas 'security' emphasizes deliberate protection against intentional threats, theft, or intrusion.

• Rhymes for security

Word Origin & Etymology

Borrowed in the 15th century from Old French securite or directly from Latin securitas ('freedom from care'), derived from securus, a compound of se- ('without') and cura ('care, anxiety').

Cite this Entry


Wordmom. (2026). Definition of Security. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/security
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