A publication in several languages; specifically, a book (especially a bible) containing several versions of the same subject matter or text in several languages.
(also figuratively) One who has mastered (especially when able to speak) several languages.
(also figuratively) A mixture of languages or nomenclatures.
A polyglot is a file or program that can be interpreted or written in multiple formats or programming languages.
(obsolete) A bird able to imitate the sounds of other birds.
Of a person: speaking, or versed in, many languages; multilingual.
Containing, or made up of, several languages; specifically, of a book (especially a bible): having text translated into several languages.
Comprising various (native) linguistic groups; multilingual.