The definition of multilingual is something or someone using many languages.
The definition of diglot is having two languages at once.
Of, including, or expressed in several languages; multilingual:
Blindly or naively optimistic.
Using two languages in some proportion in order to facilitate learning by students who have a native proficiency in one language and are acquiring proficiency in the other:
Find another word for polyglot. In this page you can discover 13 synonyms, antonyms, idiomatic expressions, and related words for polyglot, like: multilingual, diglot, hexaglot, linguist, complutensian, learned in languages, polylingual, panglossian, diglottic, bilingual and polyglottic.