What is Language?

In this short topic about language will learn the definition of language that what is language? Is it important learn a language? And important information about language?

What is language? 

Language is the expression of human communication through which knowledge, belief, and behavior can be experienced, explained, and shared. This sharing is based on systematic, conventionally used signs, sounds, gestures, or marks that convey understood meanings within a group or community. Recent research identifies “windows of opportunity” for acquiring language-writing, spoken, or signed that exist within the first few years of life.

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