1. Renowned nouns and prominent verbs

Liu Danqing discussed the importance of the prominent category in linguistic typology and proposed that the prominent category has high frequency of use, expanded functions, and psychological susceptibility. He further analyzed the prominent word classes of Chinese and English, and believed that Chinese is a verb based language, while English is a noun based language. The research of Korean scholar Lee also supports this viewpoint, pointing out that Korean language also values verbs. However, there has been relatively little academic attention paid to the comparison of the prominence of Korean and Chinese nouns. Zhang's research suggests that the prominence of Korean nouns is higher than that of Chinese, but it has not been thoroughly explored. This article aims to demonstrate from the perspective of language storage theory that Korean nouns have stronger and more prominent functions compared to Chinese nouns through comparative analysis at the levels of word classes, clauses, sentences, and discourse, and attempts to explain this phenomenon.

2. Expansion features within and outside the structure

Explored the differences in sentence extension features between Chinese and Korean. Chinese tends to use short sentences and segmental structures, with closed structures and leftward expansion of components, which are sensitive to capacity, while the structure outside presents a loose and open characteristic. Korean prefers to present the entire sentence and has a high acceptance of long sentences. Both inside and outside the structure, there is a trend of left opening and right closing, with detailed content preceding and summarizing information concluding. Korean nouns have strong grammatical functions in sentences due to their referential and enveloping properties, which may be the reason why Korean nouns are relatively prominent.

3. Functional Expansion of Korean Nouns

Explored the phenomenon of functional expansion of Korean nouns at different grammatical levels. At the word class level, Korean nouns not only represent people, objects, and abstract concepts, but also actions, states, moods, and tense aspects, which can be extended to verbs, adjectives, adverbs, and other word classes. The expansion of noun to verb function is reflected in the expression of certain emotions, attitudes, and psychological activities, such as "걱정" (worry), "ᅜ동" (distress), etc. Adjectives are extended by adding a noun followed by a '- 적', such as' 합イ적 '(reasonable). Adverbial extension uses nouns to achieve certain adverbial functions, such as "칙" (principle).

4. Conclusion

Korean nouns exhibit significant functional expansion at the grammatical level, with lower prominence than English and higher prominence than Chinese, making them relatively prominent word classes. Chinese is a verb based language, with a preference for sentence structure and line writing. The structure is arranged in opposite directions inside and outside, and the word order type is VO-OV mixed. The structure of Korean sentences is compact and has the SOV word order feature. The information needs to be organized and tightened at the closure inside the structure and at the end of the sentence outside the structure. Nouns are an important means to achieve these syntactic functions and are the reason why Korean nouns are relatively prominent.