barrier

US /ˈbæriɚ/

UK /'bærɪə(r)/

B1TOEIC
n.NounDifficult situation preventing something happening
Tough competition from existing businesses is a barrier to entry for new companies
n.NounStructure or object that stops free movement
This mountain range is a natural barrier between the countries
n.NounSomething that blocks movement or prevents access.
The mountains formed a natural barrier between the two countries.
n.NounA fence or obstacle that prevents people from moving forward.
The police set up barriers to control the crowd.
n.NounSomething that prevents understanding or agreement.
Language can be a barrier to communication.
n.NounAn obstacle in a race or competition.
The horse jumped over the barrier.
n.NounA synchronization mechanism in concurrent programming.
A memory barrier ensures that memory operations are executed in the correct order.

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