security

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 [sɪˈkjʊərɪti]



WordReference Random House Learner's Dictionary of American English © 2019
se•cu•ri•ty /sɪˈkyʊrɪti/USA pronunciation   n., pl.  -ties. 
  1. freedom from danger, risk, etc.;
    safety:[uncountable]Job security was an important issue.
  2. freedom from care, anxiety, or doubt:[uncountable]a false feeling of security living at home.
  3. [uncountable] something that protects;
    defense.
  4. freedom from financial cares:[uncountable]security in their old age.
  5. precautions against crime, sabotage, etc.:[uncountable]in charge of plant security.
  6. a department responsible for safety:[uncountable]Call Security; I think there's a shoplifter on the loose.
  7. steps taken to prevent escape:[uncountable]a prisoner held in maximum security.
  8. Law something given as a guarantee for paying back a loan:[uncountable]What can you offer as security for the loan?
  9. Businesssecurities, [plural] stocks and bonds.
See -cura-.
WordReference Random House Unabridged Dictionary of American English © 2019
se•cu•ri•ty  (si kyŏŏri tē),USA pronunciation n., pl.  -ties, adj. 
n. 
  1. freedom from danger, risk, etc.;
    safety.
  2. freedom from care, anxiety, or doubt;
    well-founded confidence.
  3. something that secures or makes safe;
    protection;
    defense.
  4. freedom from financial cares or from want:The insurance policy gave the family security.
  5. precautions taken to guard against crime, attack, sabotage, espionage, etc.:The senator claimed security was lax and potential enemies know our plans.
  6. a department or organization responsible for protection or safety:He called security when he spotted the intruder.
  7. protection or precautions taken against escape;
    custody:The dangerous criminal was placed under maximum security.
  8. an assurance;
    guarantee.
  9. Law
    • something given or deposited as surety for the fulfillment of a promise or an obligation, the payment of a debt, etc.
    • one who becomes surety for another.
  10. Businessan evidence of debt or of property, as a bond or a certificate of stock.
  11. BusinessUsually,  securities. stocks and bonds.
  12. [Archaic.]overconfidence;
    cockiness.

adj. 
  1. of, pertaining to, or serving as security:The company has instituted stricter security measures.
  • Latin sēcūritās. See secure, -ity
  • late Middle English securytye, securite(e) 1400–50
    • 2.See corresponding entry in Unabridged assurance, certainty, positiveness.
    • 3.See corresponding entry in Unabridged safeguard, safety.


Collins Concise English Dictionary © HarperCollins Publishers::

security /sɪˈkjʊərɪtɪ/ n ( pl -ties)
  1. the state of being secure
  2. assured freedom from poverty or want: he needs the security of a permanent job
  3. a person or thing that secures, guarantees, etc
  4. precautions taken to ensure against theft, espionage, etc
  5. (often plural) a certificate of creditorship or property carrying the right to receive interest or dividend, such as shares or bonds
  6. the financial asset represented by such a certificate
  7. the specific asset that a creditor can claim title to in the event of default on an obligation
  8. something given or pledged to secure the fulfilment of a promise or obligation
  9. the protection of data to ensure that only authorized personnel have access to computer files



'security' also found in these entries:
Collocations: [home, personal, computer] security, [employ, hire, recruit] security staff, have (no) [job, work, career] security, more...

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Look up "security" at Merriam-Webster
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