Definitions
1.nounOne who has mastered, notably speaks, several languages.
2.nounA publication containing several versions of the same text, or the same subject matter in several languages; especially, the Bible in several languages.
3.nounA mixture of languages or nomenclatures.
4.nounA program written in multiple programming languages.
5.nounA file that can be validly interpreted as multiple formats.
6.adjectiveVersed in, or speaking, many languages.
7.adjectiveContaining, or made up of, several languages."a polyglot Bible"
8.adjectiveComprising various linguistic groups."A polyglot region without a clearly dominant culture may develop an artificial lingua franca, such as Pidgin English in the South Sea."