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

Keep scrolling for more

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.
See More
Recent Examples on the Web The parent company of Tuber’s developer is controlled by billionaire and tech mogul Zhou Hongyi, who delisted his security company Qihoo 360 from New York in 2016 and aligned himself with China’s national interests. Bloomberg.com, "App Removed After Helping Users Bypass China’s Great Firewall," 10 Oct. 2020 Hakim al-Zamili, head of the Sadrist Movement, which holds the highest number of seats in Iraq's parliament, echoed al-Kaabi's suspicions and demanded that security agencies follow up on the case. Samya Kullab And Nabil Al-jurani, Star Tribune, "Probe launched into death of director of Korean firm in Iraq," 10 Oct. 2020 In a week that Covid-19 continued its invasion of the White House, the biggest security questions continue to center on Donald Trump himself. Brian Barrett, Wired, "Security News This Week: The Law Comes for John McAfee," 10 Oct. 2020 That mix is fostering doubt that the American security system can or will hold. Michael Schuman, The Atlantic, "Taiwan Is the Next Front in the U.S.-China Standoff," 10 Oct. 2020 State fair officials are requiring all visitors to wear masks, and game officials said security personnel will be in the stands to enforce the guidelines on masks and social distancing. Mark Heim | Mheim@al.com, al, "No. 22 Texas-Oklahoma live stream (10/10): How to watch Red River rivalry online, TV, time," 10 Oct. 2020 The World Food Program — the largest humanitarian organization addressing hunger and promoting food security internationally — last year provided assistance to nearly 100 million people in 88 countries. New York Times, "Nobel Peace Prize Awarded to World Food Program," 9 Oct. 2020 Employees of the clerk’s office retrieve them daily with security provided by the Lake County Sheriff’s office. Steve Sadin, chicagotribune.com, "Almost a third of Lake County voters have already requested mail-in ballots," 9 Oct. 2020 The security camera footage shows a man in a sweatshirt with dark hair, glasses and a waist bag slung over his right shoulder at about 1:45 a.m. Sunday. Zach Murdock, courant.com, "Meriden police seek public’s help identifying suspect in Sunday morning murder," 9 Oct. 2020

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.

See More

First Known Use of security

15th century, in the meaning defined at sense 1

Keep scrolling for more

Learn More about security

Time Traveler for security

Time Traveler

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

See more words from the same century

Statistics for security

Last Updated

15 Oct 2020

Cite this Entry

“Security.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/security. Accessed 26 Oct. 2020.

Keep scrolling for more

More Definitions for security

security

noun
How to pronounce security (audio)

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

Keep scrolling for more

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

Keep scrolling for more

Comments on security

What made you want to look up security? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Namesakes Word Quiz

  • a citrus fruit possibly named after a person
  • Which of the following is a fruit named after a Moroccan seaport?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Citation

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!