security
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.
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.
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
1Other words for security
Other words from security
- non·se·cu·ri·ty, noun, plural non·se·cu·ri·ties.
- o·ver·se·cu·ri·ty, noun
- self-se·cu·ri·ty, noun
- sub·se·cu·ri·ty, noun, plural sub·se·cu·ri·ties.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
British Dictionary definitions for security
/ (sɪˈkjʊərɪtɪ) /
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 plural)
a certificate of creditorship or property carrying the right to receive interest or dividend, such as shares or bonds
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
Other Idioms and Phrases with security
In addition to the idiom beginning with security
- security blanket
also see:
- lull into (false sense of security)
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
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