This video describes some of the characteristics of language. Some of the features of language are:
Language is verbal, vocal, and sound-based.
Language is a means of communication.
Language is a social phenomenon.
Language is arbitrary, meaning there is no inherent connection between words and their meanings.
Language is non-instinctive, conventional and learned.
Language is symbolic, using signs and symbols to represent objects, ideas, and feelings.
Language is systematic, following rules and patterns of grammar, syntax, and semantics.
Language is unique, creative, complex, and modifiable, allowing speakers to express new and diverse meanings.