Definition of security noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//sɪˈkjʊərəti//
    ; NAmE NAmE//səˈkjʊrəti//
    (pl. securities) Happiness
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  1. 1  [uncountable] the activities involved in protecting a country, building or person against attack, danger, etc. national security (= the defence of a country) airport security They carried out security checks at the airport. The visit took place amidst tight security (= the use of many police officers). the security forces/services (= the police, army, etc.) a high/maximum security prison (= for dangerous criminals) a security alert The criminals were caught (= filmed) on a security video. CollocationsInternational relationsTrade facilitate/​regulate trade (with other countries) form/​join a trading bloc live in/​compete in a global/​the world economy support/​promote free trade adopt/​call for/​oppose protectionist measures erect/​impose/​reduce/​remove trade barriers impose/​lift/​raise/​eliminate import tariffs (on something) have/​run a huge/​large/​growing trade surplus/​deficit embrace/​resist/​drive globalizationPolitics and law conduct/​handle/​talk about/​discuss foreign policy pursue an aggressive/​a hawkish foreign policy require/​use/​conduct diplomacy establish/​break off/​sever/​restore diplomatic relations foster/​promote/​strengthen regional cooperation facilitate/​achieve economic/​political integration exercise/​defend/​protect/​transfer/​restore/​regain national/​state/​full/​limited sovereignty consolidate/​extend/​lose/​retain your power (in the region) hold/​maintain/​change/​alter/​shift/​be a shift in the balance of power (in the region) cause/​create/​open/​expose/​heal/​repair a deep/​growing/​major/​serious rift between X and YMeetings and agreements have/​hold/​host/​attend an international conference/​an economic forum/​a G20 summit launch a new round of global/​multilateral/​world trade negotiations send/​head/​lead/​meet a high-level/​an official/​a trade delegation begin/​start/​continue/​resume peace talks be committed to/​be opposed to/​disrupt/​undermine/​derail/​sabotage the peace process negotiate/​achieve a lasting political settlement broker/​sign a peace deal/​agreement/​treatyConflict be/​constitute/​pose a threat to global security compromise/​endanger/​protect national security justify/​be in favour of/ (especially US English) be in favor of/​be against military intervention threaten/​authorize/​launch/​take/​support/​oppose unilateral/​pre-emptive military action impose/​enforce/​lift/​end economic sanctions/​an arms embargo/​a naval blockade close/​protect/​secure/​patrol the border lead/​be involved in a peacekeeping operationAid negotiate/​announce a $15 billion aid package/​an economic stimulus package send/​provide/​request/​cut off military aid bring/​provide emergency/​humanitarian relief deliver/​distribute medical supplies/(British English) food parcels fund/​run a foreign/​a local/​an international NGO reduce/​eradicate child/​global/​world poverty see also high-security
  2. 2  [uncountable + singular or plural verb] the department of a large company or organization that deals with the protection of its buildings, equipment and staff Security was/were called to the incident.
  3. 3[uncountable] a place at an airport where you go after your passport has been checked so that officials can find out if you are carrying illegal drugs or weapons My bag was emptied and searched when I went through security. It took ages to clear security and reach the departure lounge. Wordfinderairport, baggage reclaim, board, check-in, gate, immigration, lounge, passport, security, terminal
  4. 4  [uncountable] protection against something bad that might happen in the future financial security Job security (= the guarantee that you will keep your job) is a thing of the past. Which type of investment offers the greatest security? see also information security
  5. feeling happy/safe
  6. 5  [uncountable] the state of feeling happy and safe from danger or worry the security of a loving family life She'd allowed herself to be lulled into a false sense of security (= a feeling that she was safe when in fact she was in danger). See related entries: Happiness
  7. for a loan
  8. 6[uncountable, countable] a valuable item, such as a house, that you agree to give to somebody if you are unable to pay back the money that you have borrowed from them His home and business are being held as security for the loan.
  9. shares in company
  10. 7securities [plural] (finance) documents proving that somebody is the owner of shares, etc. in a particular company government securities
  11. see also social security
    Word Originlate Middle English: from Old French securite or Latin securitas, from securus ‘free from care’, from se- ‘without’ + cura ‘care’.Extra examples For security reasons, passengers are requested not to leave any luggage unattended. He clings to her like a security blanket. He gave her the emotional security she needed. He lost his security clearance because he failed a lie-detector test. His father agreed to stand security for his son’s house-purchase loan. Screw windows to the frame for maximum security. She pledged her jewellery as security for a £50 000 loan. Soldiers stand at security checkpoints. The bank will make a loan against the security of the lender’s house. The bars are to provide security against break-ins. The leaking of secrets from the Defence Ministry has compromised national security. The leaking of state secrets has compromised national security. The user will be lulled into a false sense of security. They have the security of a good home. Wall Street securities firms We need to tighten security around the hotel during the president’s visit. a former national security adviser to President Clinton a law to protect national security a maximum security prison a securities lawyer with Tinson and Zelkins foreign ownership of US government securities our national security interests the faltering securities market He has the security of a good home and a loving family. Investigations are continuing into a security alert in the city yesterday. Job security is a thing of the past. She’d allowed herself to be lulled into a false sense of security. The criminals were caught on a security video. The demonstrations were brutally broken up by the security forces. The government claimed that the organization posed a threat to national security. The incident has provoked calls to tighten airport security. The plan offers your family financial security in the event of your death. The visit took place amidst tight security.
See the Oxford Advanced American Dictionary entry: security