barrier

US /ˈber.i.ɚ/
UK /ˈber.i.ɚ/
"barrier" picture
1.

a fence or other obstacle that prevents movement or access

:
The police set up a barrier to control the crowd.
A natural barrier of mountains separated the two countries.
2.

a circumstance or obstacle that prevents progress or access

:
Language can be a significant barrier to communication.
They faced many financial barriers to starting their business.