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security definition

se·cu·rity (si kyo̵orə tē)

noun pl. securities -·ties

  1. the state of being or feeling secure; freedom from fear, anxiety, danger, doubt, etc.; state or sense of safety or certainty
  2. something that gives or assures safety, tranquillity, certainty, etc.; protection; safeguard
    1. protection or defense against attack, interference, espionage, etc. funds for national security
    2. protection or defense against escape a maximum-security prison
    3. procedures to provide such protection or defense
  3. an organization or department whose task is protection or safety, esp. a private police force hired to patrol or guard a building, park, or other area if you see an intruder, call security
    1. something given as a pledge of repayment, fulfillment of a promise, etc.; guarantee
    2. a person who agrees to make good the failure of another to pay, perform a duty, etc.; surety
  4. any evidence of debt or ownership; esp., a stock certificate or bond: usually used in pl.

Etymology: ME securite < L securitas < securus: see secure

adjective

of, designating, or serving as security security precautions, security guard

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

Alternate definitions:
security Synonyms

security

n.

  1. Safety

    protection, shelter, safety, refuge, retreat, defense, safeguard, preservation, sanctuary, ward, guard, immunity, freedom from harm, freedom from danger, redemption, salvation.

    Antonyms danger*, risk*, hazard. *

  2. A guarantee

    earnest, forfeit, token, pawn, pledge, surety, bond, collateral, assurance, gage, bail, certainty, promise, warranty, pact, compact, contract, covenant, agreement, sponsor, bondsman, hostage; see also protection 2.

    Antonyms doubt*, broken faith, unreliability.

  3. Stability

    soundness, assurance, surety; see confidence 2.


Webster's New World Roget's A-Z Thesaurus Copyright © 1999 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

security Usage Examples

Preposition: of

  • tenure: Security of tenure is worth a lot these days. In time of ill-health a teacher can receive full pay for six months.

Converse of object

  • enhance: ComStation can enhance security by password protecting " ftp " folders on the web server.

Adjective modifier

  • national: Warrants renewed on national security / economic well-being grounds are valid for a further period of six months.

Modifies a noun

  • guard: Four security guards were ordered to stay inside the offices to ensure we caused no damage.

Noun used with modifier

  • homeland: He will soon be leaving his position as secretary of homeland security.
security usage examples (more)

The word usage examples above have been gathered from various sources to reflect current and historical usage. They do not represent the opinions of YourDictionary.com.

security quotes

When it has left a place where we have always found it, it is like shipwreck; we drop from security into something malevolent and bottomless.

-Cather,Willa Sibert

Being lost in Australia gives you a lovely feeling of security.

-Chatwin, Bruce

   The dominion of the sea, as it is an ancient and undoubted right of the crown of England, so it isthe best security of the land† The wooden walls are the best walls of this kingdom.

-Coventry,Thomas, 1st Baron

security quotes (more)

Webster's New World Dictionary of Quotations Copyright © 2005 by Chambers Harrap Publishers Ltd. All rights reserved. Published by Wiley, Hoboken, NJ. Used by arrangement with John Wiley & Sons, Inc.

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MLA Style

"security." Webster's New World College Dictionary. 2009

  • Your Dictionary. 3 July 2009
  • <www.yourdictionary.com/security>

APA Style

security. (2009). In Webster's New World College Dictionary

  • Retrieved July 3rd, 2009, from www.yourdictionary.com/security

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