(ש"ע) רב-לשוני; בלשן; פוליגלוט

n. person who speaks many languages, one who is fluent in several languages; book containing one text in many different languages; mixture of languages

adj. speaking or writing several languages, knowing several languages, using several languages; composed of very many linguistic groups; that comprises matter in several languages; (of a book) having the text translated into a number of languages; widely varied (as in cultural origins)

See more at Wikipedia.org...

---

Noun
1. a person who speaks more than one language
(synonym) linguist
(hypernym) person, individual, someone, somebody, mortal, human, soul
(hyponym) bilingual

---

Adjective
1. having a command of or composed in many languages; "a polyglot traveler"; "a polyglot Bible contains versions in different languages"
(similar) multilingual

n. polyglot

(n.)
One who speaks several languages.
  

(n.)
A book containing several versions of the same text, or containing the same subject matter in several languages; esp., the Scriptures in several languages.
  

(a.)
Versed in, or speaking, many languages.
  

(a.)
Containing, or made up, of, several languages; as, a polyglot lexicon, Bible.