language barrier
US /ˈlæŋ.ɡwɪdʒ ˌber.i.ər/
UK /ˈlæŋ.ɡwɪdʒ ˌber.i.ər/

1.
barrière linguistique
a difficulty in communication between people who do not speak the same language
:
•
The language barrier made it hard for them to understand each other.
La barrière linguistique rendait difficile pour eux de se comprendre.
•
Overcoming the language barrier is crucial for international business.
Surmonter la barrière linguistique est crucial pour les affaires internationales.