security

noun
se·​cu·​ri·​ty | \ si-ˈkyu̇r-ə-tē How to pronounce security (audio) , -ˈkyər- \
plural securities

Definition of security

1 : the quality or state of being secure: such as
a : freedom from danger : safety
b : freedom from fear or anxiety
c : freedom from the prospect of being laid off job security
2a : something given, deposited, or pledged to make certain the fulfillment of an obligation
b : surety
3 : an instrument of investment in the form of a document (such as a stock certificate or bond) providing evidence of its ownership
4a : something that secures : protection
b(1) : measures taken to guard against espionage or sabotage, crime, attack, or escape
(2) : an organization or department whose task is security

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Examples of security in a Sentence

We must insure our national security. The college failed to provide adequate security on campus after dark. There was a lapse in security and the inmates escaped. We have to go through security at the airport. We called security when we found the door open. The meeting was held under tight security. The prisoner was being kept under maximum security. I like the security of knowing there will be someone there to help me when I need help. Growing up in a close family gave her a sense of security.
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Recent Examples on the Web Yelich has the security of a long-term deal through 2028. Gabe Lacques, USA TODAY, "Five things to watch as MLB spring training games begin in Arizona, Florida," 28 Feb. 2021 Many residents work in low-paying jobs, such as shop staff or security guards, and are unable to work from home. NBC News, "How 'Detroit of the U.K.' went from thriving suburb to Covid hotspot," 28 Feb. 2021 But the security going up around the Hennepin County courthouse, City Hall and the jail — all in the heart of downtown — is extraordinary. Steve Karnowski, chicagotribune.com, "Barbed wire being rolled out: Trial of Derek Chauvin, cop charged in death of George Floyd, set to start in March," 27 Feb. 2021 But the security going up around the Hennepin County courthouse, City Hall and the jail — all in the heart of downtown — is extraordinary. Steve Karnowski, Star Tribune, "Growing tension in Minneapolis as trial looms in Floyd death," 27 Feb. 2021 Uniformed security guards stepped in when a scuffle erupted over a missing cell phone. Anchorage Daily News, "A year in, Sullivan Arena may be the biggest mass homeless shelter in the nation. What happens next?," 27 Feb. 2021 White's data shows that one month after these signals, the security was higher 67% of the time, averaging a 5.6% gain for that same period. Schaeffer's Investment Research, Forbes, "History Suggests More Record Highs For This Chip Stock," 25 Feb. 2021 Once the Capitol was breached, Pittman said the department’s focus turned to securing members and then to the physical security of the building. Luke Barr, ABC News, "Acting Capitol Police chief admits 'internal challenges' during Jan. 6 response," 24 Feb. 2021 The SolarWinds hack raised broader questions about the security of software supply chains on which the government relies, Mr. Warner said. Dustin Volz, WSJ, "Senate Panel Probes SolarWinds Hack to Learn ‘How Big, How Broad’ Hit Was," 23 Feb. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'security.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of security

15th century, in the meaning defined at sense 1

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Time Traveler for security

Time Traveler

The first known use of security was in the 15th century

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Statistics for security

Last Updated

2 Mar 2021

Cite this Entry

“Security.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/security. Accessed 5 Mar. 2021.

Style: MLA
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More Definitions for security

security

noun

English Language Learners Definition of security

: the state of being protected or safe from harm
: things done to make people or places safe
: the area in a place (such as an airport) where people are checked to make sure they are not carrying weapons or other illegal materials

security

noun
se·​cu·​ri·​ty | \ si-ˈkyu̇r-ə-tē How to pronounce security (audio) \
plural securities

Kids Definition of security

1 : the state of being safe : safety national security
2 : freedom from worry or anxiety financial security
3 : something given as a pledge of payment He gave security for a loan.
4 : something (as a stock certificate) that is evidence of debt or ownership

security

noun
se·​cu·​ri·​ty | \ si-ˈkyu̇r-ət-ē How to pronounce security (audio) \
plural securities

Medical Definition of security

: freedom from fear or anxiety need for security dates back into infancy— K. C. Garrison

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security

noun
se·​cur·​i·​ty | \ si-ˈkyu̇r-ə-tē How to pronounce security (audio) \
plural securities

Legal Definition of security

1a : something (as a mortgage or collateral) that is provided to make certain the fulfillment of an obligation used his property as security for a loan
b : surety — see also security for costs
2 : evidence of indebtedness, ownership, or the right to ownership specifically : evidence of investment in a common enterprise (as a corporation or partnership) made with the expectation of deriving a profit solely from the efforts of others who acquire control over the funds invested a security involves some form of investment contract — see also due diligence
asset-backed security
: a security (as a bond) that represents ownership in or is secured by a pool of assets (as loans or receivables) that have been securitized
bearer security
: a security (as a bearer bond) that is not registered and is payable to anyone in possession of it
certificated security \ sər-​ˈti-​fə-​ˌkā-​təd-​ \
: a security that belongs to or is divisible into a class or series of shares, participations, interests, or obligations, is a commonly recognized medium of investment, and is represented on an instrument payable to the bearer or a specified person or on an instrument registered on books by or on behalf of the issuer
convertible security
: a security (as a share of preferred stock) that the owner has the right to convert into a share or obligation of another class or series (as common stock)
debt security
: a security (as a bond) serving as evidence of the indebtedness of the issuer (as a government or corporation) to the owner
equity security
: a security (as a share of stock) serving as evidence of an ownership interest in the issuer also : one convertible to or serving as evidence of a right to purchase, sell, or subscribe to such a security
exempted security
: a security (as a government bond) exempt from particular requirements of the Securities and Exchange Commission (as those relating to registration on a security exchange)
fixed-income security
: a security (as a bond) that provides a fixed rate of return on an investment (as because of a fixed interest rate or dividend)
government security
: a security (as a Treasury bill) that is issued by a government, a government agency, or a corporation in which a government has a direct or indirect interest
hybrid security
: a security with characteristics of both an equity security and a debt security
mortgage-backed security
: a security that represents ownership in or is secured by a pool of mortgage obligations specifically : a pass-through security based on mortgage obligations
pass-through security
: a security representing an ownership interest in a pool of debt obligations from which payments of interest and principal pass from the debtor through an intermediary (as a bank) to the investor especially : one based on a pool of mortgage obligations guaranteed by a federal government agency — compare collateralized mortgage obligation, remic
registered security
1 : a security (as a registered bond) whose owner is registered on the books of the issuer
2 : a security that is to be offered for sale and for which a registration statement has been submitted
restricted security
: a security accompanied by restrictions on its free transfer or registration of transfer
shelf security
: a corporate security held for deferred issue in a shelf registration
Treasury security
: a security issued by a government treasury : treasury sense 3
uncertificated security \ ˌən-​sər-​ˈti-​fə-​ˌkā-​təd-​ \
: a security that belongs to or is divisible into a class or series of shares, participations, interests, or obligations, that is a commonly recognized medium of investment, that is not represented by an instrument, and the transfer of which is registered on books by or on behalf of the issuer
unregistered security
: a security for which a registration statement has not been filed
when-issued security
: a security traded on a conditional basis prior to its issue
3a : measures taken to guard against espionage or sabotage, crime, attack, or escape
b : an organization or department whose task is security

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