The system of words or signs that people use to express thoughts and feelings to each other. Any one of the systems of human language that are used and understood by a particular group of people. Evolutionary adaptation for survival ransferring the ideas from one mind to another. Tells us so much about the human mind. Every human society uses a language, which are equally complex. There is no such thing as a primitive language. About 7000 languages are currently spoken, not all areas are equally diverse. Everyone speaks some dialect (dialects are not only for minorities). Dialects of the same language are generally mutually intelligible, but what distinguishes two languages is a political rather than a linguistic question. Non-linguists say something is bad grammar or grammatically incorrect . Is about one variety (idiolect) being better than another. There is a lot of variability in language.