security Definition in Cambridge British English Dictionary
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Definition of "security" - British English Dictionary

See all translations

securitynoun

uk   /sɪˈkjʊə.rɪ.ti/  us   /-ˈkjʊr.ə.t̬i/

security noun (PROTECTION)

B1 [U] protection of a person, building, organization, or country against threats such as crime or attacks by foreign countries: The station was closed for two hours because of a security alert. 30 demonstrators were killed in clashes with the security forces over the weekend. The tighter security measures/precautions include video cameras in the city centre. The students were deported because they posed a threat to national security. The proposed national identity card system would help to tighten security against fraud. The most dangerous criminals are held in maximum-security prisons (= prisons that are as difficult as possible to escape from). [U, + sing/pl verb] the group of people responsible for protecting a building: You'll need to notify security if you want to work late in the office.
More examples

security noun (FIXED)

C1 [U] the fact that something is not likely to fail or be lost: If it's a choice between higher pay and job security, I'd prefer to keep my job. I'm on a temporary contract and have little financial security (= little certainty of having enough money to live on).

security noun (FINANCE)

[U] property or goods that you promise to give to someone if you cannot pay what you owe them: She used her shares in the company as security against a $23 million bank loan. The hotel held onto our baggage as security while we went to the bank to get money to pay the bill.securities [plural] specialized investment in a company or in government debt that can be traded on the financial markets and produces an income for the investor

security noun (CONFIDENCE)

C2 [U] the feeling of being confident in one's family and relationships: Most children need the security of a stable family life.
(Definition of security from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of security?
Add Cambridge dictionaries to your browser to your website

Definitions of “security” in other dictionaries

Word of the Day
poke

to greet someone on a social networking website by leaving them a special short message

Word of the Day

The cake was made by my sister: how to use the passive in English.
The cake was made by my sister: how to use the passive in English.
by Liz Walter,
June 24, 2015
Look at these two sentences: My sister made the cake. The cake was made by my sister. Both these sentences mean the same. The first is an active sentence: it tells you what the sister did. The second is a passive sentence: it tells you what happened to the cake. Here are

Read More 

burger noun
burger noun
June 29, 2015
a menu on a computer screen comprising three short parallel horizontal lines which the user clicks to see options Definitely use a burger. You could put the settings in the burger menu too. Fix the settings to the bottom of the burger menu and use a vertically scrolling contact list that scrolls behind

Read More