Hey,
A language barrier is a figurative phrase used primarily to refer to linguistic barriers to communication (https://en.m.wikipedia.org/wiki/Communication) , i.e. the difficulties in communication experienced by people or groups originally speaking different languages (https://en.m.wikipedia.org/wiki/Languages) , or even dialects (https://en.m.wikipedia.org/wiki/Dialect) in some cases.
Examples of language barriers that prevent individuals from effective communication include: Dialects - While two people may technically speak the same language, dialectal differences can make communication between them difficult. Language Disabilities - Language disabilities are physical impediments to language.
Hope this helps.
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