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

barrier

noun
 
/ˈbæriə(r)/
 
/ˈbæriər/
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  1. an object like a fence that prevents people from moving forward from one place to another
    • The crowd had to stand behind barriers.
    • Concrete barriers were erected around the site.
    • The crowd managed to break through the barriers and get onto the pitch.
    see also crash barrier, crush barrier
    Extra Examples
    • The car crashed into the safety barrier and burst into flames.
    • The police waited behind the barriers.
    • Sightseers watched from the other side of the security barriers.
    Oxford Collocations Dictionaryadjective
    • physical
    • crash
    • crush
    verb + barrier
    • build
    • erect
    • install
    preposition
    • at a/​the barrier
    • behind a/​the barrier
    • through a/​the barrier
    See full entry
  2. (British English) a gate at a car park or railway station that controls when you may go through by being raised or lowered
    • Scan your ticket at the barrier and it will automatically lift.
    • There was a slow trickle of people through the barriers.
    • She got her luggage stuck in the automatic barrier.
  3. a problem, rule or situation that prevents somebody from doing something, or that makes something impossible
    • the removal of trade barriers
    • to overcome/break down barriers
    • the language barrier (= when people cannot communicate because they do not speak the same language)
    • barrier to something Lack of confidence is a psychological barrier to success.
    • The old laws created barriers to free trade.
    • barrier against something The country has removed barriers against imports.
    Collocations International relationsInternational 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 globalization
    Politics 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 Y
    Meetings and agreements
    • have/​hold/​host/​attend an international conference/​an economic forum/​a summit meeting
    • 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/​treaty
    Conflict
    • be/​constitute/​pose a threat to global security
    • compromise/​endanger/​protect national security
    • justify/​be in favour of/ (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 operation
    Aid
    • 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/(North American English)food packages
    • fund/​run a foreign/​a local/​an international NGO
    • reduce/​eradicate child/​global/​world poverty
    Extra Examples
    • The world of Disney is a magical experience that knows no age barriers.
    • Cost should not be a barrier to the use of legal services.
    • Lack of a common language was a formidable barrier to communication.
    • There has been a gradual reduction in subsidies and trade barriers.
    Oxford Collocations Dictionaryadjective
    • effective
    • formidable
    • major
    verb + barrier
    • build
    • create
    • erect
    preposition
    • barrier against
    • barrier between
    • barrier to
    See full entry
  4. 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.
    • barrier between A and B There was no real barrier between reality and fantasy in his mind.
    • barrier against something The cream acts as a protective barrier against sun damage.
    see also species barrier
    Extra Examples
    • Ozone is the earth's barrier against ultraviolet radiation.
    • The mountains form a natural barrier between the two countries.
    • They believe that music can cross any barriers.
    • There was a class barrier between the two families.
    Oxford Collocations Dictionaryadjective
    • impassable
    • impenetrable
    • natural
    verb + barrier
    • form
    preposition
    • barrier between
    See full entry
  5. a particular amount, level or number that it is difficult to get past
    • the first player whose earnings passed the $10 million barrier
    see also sound barrier
  6. Word Originlate Middle English (denoting a palisade or fortification defending an entrance): from Old French barriere, of unknown origin.
See barrier in the Oxford Advanced American DictionarySee barrier in the Oxford Learner's Dictionary of Academic English
sufficiently
adverb
 
 
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