The reason why a name is such a name is completely arbitrary, and there is no fixed statement of appropriateness or inappropriateness. Any name is unanimously agreed upon by the social group. Once the society agrees, It cannot be changed. Shakespeare's famous saying in "Romeo and Juliet" also illustrates this truth: What's in a name? That which we call a rose By any other name would smell as sweet (Romeo and Juliet). This is the arbitrary nature of language. Say.

The theory of language arbitrariness has a strong explanatory power on language phenomena. It explains that a large number of symbolic natures in language symbols are rather than iconic natures. Although the iconicity of language is Similarity also exists to a certain extent. If language is not arbitrary, then we cannot explain why there are differences in phonetic and semantic relationships between Chinese and English.