Tra từ security - Từ điển WordNet v3.1

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