1. Introduction

At the beginning of the 20th century, the phenomenon of noun fusion was introduced into the research field of multimodal languages, characterized by the intransitivization of predicates, low referentialization of fused nouns, disappearance of morphological markers, semantic standardization and solidification. Scholars have conducted in-depth discussions on the definition, generation mechanism, homogeneity, and other issues of noun fusion, which have had a profound impact on the fundamental theories of linguistics. However, previous research has mainly focused on multimodal comprehensive languages, with less attention paid to the phenomenon of noun fusion in analytical languages that lack morphological changes. In recent years, the shift from morphological/structural fusion to semantic fusion has given rise to the theory of semantic fusion, rewriting the boundaries between morphology/form and syntax, and introducing new topics for the study of grammar interfaces and formal semantics. This article will systematically review the current status, main topics, and development trends of noun fusion research from a cross linguistic perspective, and discuss the implications of the semantic shift in fusion research for Chinese language studies, as well as how it can bring new opportunities for Chinese linguistics.

2. Noun Fusion from the Perspective of Generative Grammar

Deeply explored the phenomenon of noun fusion and analyzed its properties and characteristics from the perspective of generative grammar. The fusion of nouns was initially considered a lexical operation, but as research deepened, scholars gradually realized that it is a syntactic process. There are significant differences in morphology, semantics, rhythm, and syntax between compound words and nouns. Nouns fused together have syntactic independence and can be referred back to by the referent in the following text, allowing modifiers to be left blank. Baker proposed the central language shift hypothesis, which suggests that noun fusion is the process of moving the central language of the lower NP to the central language position of the VP, forming a complex central language. He also proposed multimodal synthesis parameters, believing that there is a positive correlation between noun fusion and the number of consistency features.

3. The challenge of noun fusion on semantic combination

Explored in depth the challenge of noun fusion structure on semantic combination. The noun fusion structure differs significantly in form and semantics from conventional verb object phrases, with a close connection between verbs and objects, and is commonly used to describe institutionalized events. For example, the noun fusion structures "laRkii dekhnaa" and "baccaa khilaanaa" in Hindi have specific meanings, while "* baccaa maarnaa" and "* aurat dekhnaa" cannot form fusion structures. In addition, noun fusion structures exhibit domain inertia when coexisting with domain operators such as negation words, and tend to obtain mandatory narrow domain interpretations.

4. Semantic Fusion Phenomenon in Chinese

This study explores the phenomenon of noun fusion in Chinese from a semantic perspective and points out that this research method helps to surpass the limitations of traditional dependency on morphological syntactic features, providing a new analytical tool for the fusion phenomenon in analytic languages. The structure of "separation words" in Chinese, such as "reading" and "eating", is similar in form to verb object phrases, but approaches compound words in meaning, challenging the boundaries between words and phrases. Scholars such as Lv Shuxiang have conducted in-depth discussions on this phenomenon, but no consensus has been reached yet.

5. Conclusion

In recent years, there have been new trends in noun fusion research, including the expansion of research objects and scope, the shift from morphological fusion to semantic fusion, and the rise of interdisciplinary interface research. The proposal of semantic fusion theory brings new challenges to theoretical linguistics and has methodological value for Chinese linguistic research. The diversity of Chinese language resources provides rich materials for research, emphasizing that Chinese language studies need to go beyond the perspective of Indo European languages. Introducing semantic fusion theory can help reveal the universal value of Chinese language and promote the greater role of Chinese linguistics in the construction of general linguistic theories.