Language-A language is a system, used to communicate, comprised of a set of arbitrary symbols and a set of rules (or grammar) by which the manipulation of these symbols is governed. These symbols can be combined productively to convey new information, distinguishing languages from other forms of communication.
Human languages use patterns of sound and/or hand gesture for symbols. These sounds can be converted into written form with little loss of information. Gestures and intonation are a part of delivery, but are not conveyed in written form. Some invented human languages have been built entirely on visual cues to enable communication. In human languages, the symbols are sometimes known as lexemes and the rules are usually known as grammars.
"Language" is also used to refer to common properties of languages. Language learning is normal in human childhood and is biologically driven: a crucial role of this process is performed by the neural activity of a portion of the human brain.
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