English dictionary

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English noun: security

1. security (state) the state of being free from danger or injury

SamplesWe support the armed services in the name of national security.

Broader (hypernym)safety

Narrower (hyponym)peace, protection, public security, secureness, shelter


2. security (possession) defense against financial failure; financial independence

SamplesHis pension gave him security in his old age.
Insurance provided protection against loss of wages due to illness.


Broader (hypernym)assets

Narrower (hyponym)easy street, hedge, hedging, insurance

3. security (feeling) freedom from anxiety or fear

SamplesThe watch dog gave her a feeling of security.

Broader (hypernym)bravery, fearlessness

Narrower (hyponym)confidence

4. security (possession) a formal declaration that documents a fact of relevance to finance and investment; the holder has a right to receive interest or dividends

SamplesHe held several valuable securities.


Broader (hypernym)instrument, legal document, legal instrument, official document

Narrower (hyponym)agency security, bond, bond certificate, convertible, convertible security, government security, letter security, listed security, mortgage-backed security, OTC security, over the counter security, partnership certificate, proprietorship certificate, registered security, scrip, stock, stock certificate, tax-exempt, tax-exempt security, unlisted security, zero coupon security, zero-coupon security

5. security (possession) property that your creditor can claim in case you default on your obligation

SamplesBankers are reluctant to lend without good security.


Broader (hypernym)transferred possession, transferred property

Narrower (hyponym)deposit, earnest, recognisance, recognizance, stock warrant, stock-purchase warrant, warrant

6. security (group) a department responsible for the security of the institution's property and workers

SamplesThe head of security was a former policeman.

Synonymssecurity department

Broader (hypernym)department, section

7. security (communication) a guarantee that an obligation will be met


Broader (hypernym)guarantee, warrant, warrantee, warranty

8. security (artifact) an electrical device that sets off an alarm when someone tries to break in

Synonymssecurity measure, security system

Broader (hypernym)electrical device

9. security (act) measures taken as a precaution against theft or espionage or sabotage etc.

SamplesMilitary security has been stepped up since the recent uprising.

Synonymssecurity measures

Broader (hypernym)guard, precaution, safeguard

Based on WordNet 3.0 copyright © Princeton University.
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