Definition of security
2a : something given, deposited, or pledged to make certain the fulfillment of an obligationb : surety
3 : an instrument of investment in the form of a document (such as a stock certificate or bond) providing evidence of its ownership
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.
Recent Examples of security from the Web
Trump made the decision nearly a month ago, after an Oval Office meeting with national security adviser H.R. McMaster and CIA Director Mike Pompeo, according to the newspaper.
Safety first Most importantly, before downloading financial apps or software of any kind, be sure to fully understand security features.
Then Carlos applied to renew his security license with the state, and the background check flagged him for a felony charge.
According to the Washington Examiner, the president's son-in-law and new White House Office of American Innovation director was also at this meeting, a fact Kushner originally failed to disclose in his security clearance forms.
Security forces shot both attackers, killing one and wounding the other before arresting him.
Two of this year's graduates of the homeland security magnet program at Joppatowne High School became Baltimore City and Baltimore County Police cadets.
Apple stressed that privacy and security protections will remain in place.
Federal investigators are reportedly closely looking at Kushner, and there are increasing calls to revoke his security clearance.
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.
First Known Use of security
Financial Definition of SECURITY
What It Is
How It Works
Fixed income securities provide periodic income payments at an interest or dividend rate known in advance by the holder. The most common fixed-income securities include Treasury bonds, corporate bonds, certificates of deposit (CDs) and preferred stock.
Holders of Treasury bonds and CDs receive a fixed interest rate based on a par value over a specific period of time. Holders of preferred stock are entitled to a periodic fixed dividend specified by the issuing company for as long as they own the shares.
To illustrate, suppose an investor owns a Treasury bond with a par value of $1,000 and an annual yield of 6%. This investor is guaranteed a payment of $60 each year for the life of the bond. Similarly, an investor who holds preferred stock in Company XYZ might be promised a quarterly dividend payment of $5 per share, which he can dependably receive for as long as he holds the shares.
Why It Matters
Fixed income securities are an excellent choice for risk-averse investors seeking a stable source of income payments at predictable intervals. Fixed income investors and prospective investors should understand that the relatively low risk of fixed income securities generally translates into relatively lower returns.
SECURITY Defined for English Language Learners
Definition of security for English Language Learners
: 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 Defined for Kids
Definition of security for Students
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
Medical Definition of security
: freedom from fear or anxiety need for security dates back into infancy—K. C. Garrison
Legal Definition of security
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 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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