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Từ điển WordNet v3.1 - WordNet Dictionary
security



noun
1. the state of being free from danger or injury (Freq. 17)
- we support the armed services in the name of national security
Ant:
insecurity
Derivationally related forms:
secure
Hypernyms:
safety
Hyponyms:
peace, public security, secureness, protection, shelter
2. defense against financial failure;
financial independence (Freq. 5)
- his pension gave him security in his old age
- insurance provided protection against loss of wages due to illness
Syn:
protection
Derivationally related forms:
secure
Hypernyms:
assets
Hyponyms:
easy street, hedge, hedging, insurance
3. freedom from anxiety or fear (Freq. 1)
- the watch dog gave her a feeling of security
Derivationally related forms:
secure
Hypernyms:
fearlessness, bravery
Hyponyms:
confidence
4. a formal declaration that documents a fact of relevance to finance and investment;
the holder has a right to receive interest or dividends
- he held several valuable securities
Syn:
certificate
Derivationally related forms:
certify (for: certificate), certificate (for: certificate)
Hypernyms:
legal document, legal instrument, official document, instrument
Hyponyms:
government security, agency security, mortgage-backed security, registered security, scrip,
stock certificate, stock, tax-exempt security, tax-exempt, bond, bond certificate,
zero-coupon security, zero coupon security, partnership certificate, proprietorship certificate, convertible, convertible security,
letter security, listed security, unlisted security, over the counter security, OTC security
5. property that your creditor can claim in case you default on your obligation
- bankers are reluctant to lend without good security
Syn:
surety
Hypernyms:
transferred property, transferred possession
Hyponyms:
deposit, earnest, recognizance, recognisance, warrant,
stock warrant, stock-purchase warrant
6. a department responsible for the security of the institution's property and workers
- the head of security was a former policeman
Syn:
security department
Hypernyms:
department, section
7. a guarantee that an obligation will be met
Syn:
surety
Hypernyms:
guarantee, warrant, warrantee, warranty
8. an electrical device that sets off an alarm when someone tries to break in
Syn:
security system, security measure
Hypernyms:
electrical device
9. measures taken as a precaution against theft or espionage or sabotage etc.
- military security has been stepped up since the recent uprising
Syn:
security measures
Hypernyms:
precaution, safeguard, guard

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