Research into semantic extensions help deepen our understanding of such relations.

Denominalization refers to the conversion of nouns to verbs or adjectives and is a common type of semantic extension in Chinese,which was not discovered in the past as it had been discussed under other types of extension.

Study on the extended meanings of English animal words;

So, understanding the important features of lexical meaning, the differences and similarities between literal meaning and extended meaning, people can solve such problems as various interpretations, wrong collocation, lexical meaning containing nothing but generalities, and .

We should learn to distinguish the word s original idea and extended meaning.

From the analysis of its origin,the extended meaning of——"zhai",the new word"zhainan" is discussed.

Except for Xian that underwent no change in meaning and has no extended meaning,all the other four s current extended meanings are different from those in ancient times.

This paper,based on the prototype categorization theory and corpus,analyzes extension of semantic meaning.