Definition of 'language' from www.thefreedictionary.com 1. a. Communication of thoughts and feelings through a system of arbitrary signals, such as voice sounds, gestures, or written symbols. b. Such a system including its rules for combining its components, such as words. c. Such a system as used by a nation, people, or other distinct community; often contrasted with dialect. 2. a. A system of signs, symbols, gestures, or rules used in communicating: the language of algebra. b. Computer Science A system of symbols and rules used for communication with or between computers. 3. Body language; kinesics. 4. The special vocabulary and usages of a scientific, professional, or other group: "his total mastery of screen languagecamera placement, editingand his handling of actors" (Jack Kroll). 5. A characteristic style of speech or writing: Shakespearean language. 6. A particular manner of expression: profane language; persuasive language. 7. The manner or means of communication between living creatures other than humans: the language of dolphins. 8. Verbal communication as a subject of study. 9. The wording of a legal document or statute as distinct from the spirit.

I think there is many words with the same meaning of language word ; like : accent , dialect , tongue , speech , talk , ......etc