adjective. Of, including, or expressed in several languages.

adjective. Using or having the ability to use several languages.

adjective. Pertaining to multiple languages.

adjective. able to communicate fluently in multiple languages

adjective. using or knowing more than one language

"The World Digital Library makes available on the Internet, free of charge and in multilingual format, significant primary materials from countries and cultures around the world."

polyglot  

bilingual  polyglot  trilingual  

language  multilingualism  

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