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



    BrE BrE//ˈbæriə(r)//
    ; NAmE NAmE//ˈbæriər//
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  1. 1  an object like a fence that prevents people from moving forward from one place to another The crowd had to stand behind barriers. Show your ticket at the barrier. The car crashed into the safety barrier and burst into flames. see also crash barrier
  2. 2  a problem, rule or situation that prevents somebody from doing something, or that makes something impossible the removal of trade barriers The world of Disney is a magical experience that knows no age barriers. barrier to something Lack of confidence is a psychological barrier to success. Cost should not be a barrier to the use of legal services. 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
  3. 3  something that exists between one thing or person and another and keeps them separate The Yangtze River is a natural barrier to the north-east. the language barrier (= when people cannot communicate because they do not speak the same language) barrier between A and B There was no real barrier between reality and fantasy in his mind. barrier against something Ozone is the earth's barrier against ultraviolet radiation.
  4. 4a particular amount, level or number that it is difficult to get past the first player whose earnings passed the $10 million barrier
  5. Word Originlate Middle English (denoting a palisade or fortification defending an entrance): from Old French barriere, of unknown origin.Extra examples The country has set up barriers against imports. The crowd managed to break through the barriers and get onto the pitch. The mountains form a natural barrier between the two countries. The old laws created barriers to free trade. The police waited behind the barriers. There was a slow trickle of people through the barriers. They believe that music can cross any barriers. a class barrier between the two families a formidable barrier to communication the first plane to break the sound barrier Crash barriers were erected along the roads to be used for the race. She got her luggage stuck in the automatic barrier. Sightseers watched from the other side of the security barriers. The crowd had to stand behind barriers There has been a gradual reduction in subsidies and trade barriers.
See the Oxford Advanced American Dictionary entry: barrier