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[si-kyoo r-i-tee] /sɪˈkyʊər ɪ ti/
noun, plural securities.
freedom from danger, risk, etc.; safety.
freedom from care, anxiety, or doubt; well-founded confidence.
something that secures or makes safe; protection; defense.
freedom from financial cares or from want:
The insurance policy gave the family security.
precautions taken to guard against crime, attack, sabotage, espionage, etc.: claims that security was lax at the embassy;
the importance of computer security to prevent hackers from gaining access.
a department or organization responsible for protection or safety:
He called security when he spotted the intruder.
protection or precautions taken against escape; custody:
The dangerous criminal was placed under maximum security.
an assurance; guarantee.
  1. something given or deposited as surety for the fulfillment of a promise or an obligation, the payment of a debt, etc.
  2. one who becomes surety for another.
an evidence of debt or of property, as a bond or a certificate of stock.
Usually, securities. stocks and bonds.
Archaic. overconfidence; cockiness.
of, relating to, or serving as security:
The company has instituted stricter security measures.
Origin of security
late Middle English
1400-50; late Middle English securytye, securite(e) < Latin sēcūritās. See secure, -ity
Related forms
nonsecurity, noun, plural nonsecurities.
oversecurity, noun
self-security, noun
subsecurity, noun, plural subsecurities.
2. assurance, certainty, positiveness. 3. safeguard, safety. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for securities
Contemporary Examples
Historical Examples
  • And then the regard I have hitherto had for my reputation is another of their securities.

    Clarissa, Volume 2 (of 9) Samuel Richardson
  • I have reason to believe that you will not find any securities or bonds there at all!

    The Avenger E. Phillips Oppenheim
  • And I'll go with you and deliver the securities to Mr. Chase.

  • That's four hours, and it will take some time to transfer the securities, and get the cash.

  • This explains the slight rise in the value of Irish securities.

    Ireland as It Is Robert John Buckley (AKA R.J.B.)
British Dictionary definitions for securities


noun (pl) -ties
the state of being secure
assured freedom from poverty or want: he needs the security of a permanent job
a person or thing that secures, guarantees, etc
precautions taken to ensure against theft, espionage, etc: the security in the government offices was not very good
(often pl)
  1. a certificate of creditorship or property carrying the right to receive interest or dividend, such as shares or bonds
  2. the financial asset represented by such a certificate
the specific asset that a creditor can claim title to in the event of default on an obligation
something given or pledged to secure the fulfilment of a promise or obligation
a person who undertakes to fulfil another person's obligation
the protection of data to ensure that only authorized personnel have access to computer files
(archaic) carelessness or overconfidence
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for securities



mid-15c., "condition of being secure," from Latin securitas, from securus "free from care" (see secure). Replacing sikerte (early 15c.), from an earlier borrowing from Latin; earlier in the sense "security" was sikerhede (early 13c.); sikernesse (c.1200).

Meaning "something which secures" is from 1580s; "safety of a state, person, etc." is from 1941. Legal sense of "property in bonds" is from mid-15c.; that of "document held by a creditor" is from 1680s. Phrase security blanket in figurative sense is attested from 1966, in reference to the crib blanket carried by the character Linus in the "Peanuts" comic strip (1956).

Online Etymology Dictionary, © 2010 Douglas Harper
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securities in Culture

securities definition

Written evidence of ownership or creditorship, such as bonds and stock certificates.

The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Idioms and Phrases with securities


In addition to the idiom beginning with security also see: lull into (false sense of security)
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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