1. Introduction

We discussed the impact of digitalization, networking, and media integration technologies on diverse reading teaching methods, emphasizing the importance of multimodal elements in language teaching. The Chinese Lexicographical Society has proposed the development of multimedia dictionaries, promoting the multimodal transformation of dictionary compilation and usage. The study analyzed the composition mechanism and development issues of multimedia dictionaries, and explored how to use multimodal symbol resources to construct a definition model, in order to enhance the dictionary's definition ability and user interaction, and support language learning and teaching.

2. Integrated Media Dictionary

Integrated media dictionary is a product of the digital age, which provides richer vocabulary knowledge information by integrating text, images, sound, and video modalities. Compared with traditional dictionaries, integrated media dictionaries focus more on the carrier, transmission, and presentation of modalities, as well as the inherent mechanism of multimodal definitions. The development of multimedia dictionaries is influenced by multimedia and multimodal digital technologies, and its core connotation is "integration", involving various aspects of dictionaries. However, the core connotation of the compilation and interpretation of integrated media dictionaries has not been fully reflected at the current level, mainly due to insufficient understanding of the composition mechanism of integrated media dictionaries and the lack of a systematic theoretical framework. The integrated media dictionary involves multiple elements and complex construction mechanisms, including three major relationships and five levels of modal operation. The three major relationships include the relationship between integrated media and lexicography, the relationship between multimodality and multimedia, and the relationship between integrated media and multimodality. The five levels of modal operation include entity perception layer, cognitive sensory layer, psychological cognition layer, logical medium layer, and physical medium layer. Integrated media dictionaries achieve multimodal representation of dictionary definitions through the fusion of multiple modalities.

3. Theoretical basis of multimedia multimodal interpretation

Explored the theoretical basis of multimodal dictionary definitions under the framework of integrated media, emphasizing the importance of multiple symbols in natural communication. Multimodal discourse analysis is the key to constructing multimodal contexts, which is based on systemic functional linguistics and studies the interactions between different symbolic systems. Multimodal symbolic grammar focuses on the communicative role of symbolic resources such as language, gestures, and images, while multimodal knowledge visualization utilizes graphics principles to display knowledge and promote innovation and dissemination of knowledge. Multimodal construction grammar extends the theory of construction grammar by incorporating multimodal information into semantic analysis. These theories provide a method for dictionary compilation to construct multimodal definitions, including selecting appropriate modal combinations and utilizing multimedia technology to construct multimodal content.

4. Design of multimodal text for learning dictionaries

Explored the user oriented principles of multimodal learning dictionary text design under the framework of integrated media, emphasizing the design of dictionary structure and interpretation methods based on users' language cognitive characteristics, learning tasks, and needs. Firstly, point out the shortcomings of Chinese ESL learners in English language sense and the limitations of traditional learning dictionaries. Multimodal interpretation can provide rich semantic contexts and usage patterns, supporting second language acquisition. Secondly, the importance of the pluralistic reading teaching method was discussed, which integrates language with other forms of representation, promotes dynamic presentation of semantics, and enhances students' critical thinking and cross-cultural awareness. In addition, it emphasizes the cultivation of self-learning ability and the role of multimodal dictionaries in supporting this goal.

5. Multimodal Interpretation Mode and Text Construction

Under the framework of integrated media, the interpretation mode and text construction of multimodal dictionaries involve the selection of multimodal symbol functions, the construction of ideal cognitive modes, and the processing of multimodal data and the construction of interpretation texts. The selection of multimodal symbols requires consideration of the appropriateness of symbol grammar, the expected effects of modal physical knowledge products on sensory stimuli, and the multimodal contextual mapping of abstract words. The ideal cognitive model of multimodal interpretation aims to construct semantic representations through multimodal symbols, creating a natural context similar to first language acquisition, including language modality, cognitive modality, relational network, construction, and interpretation structure.

6. Conclusion

The semantic representation function of multimodal symbols and the semantic design approach of multimodal recognition have theoretical significance for constructing an interactive learning model for multimodal dictionaries. Multimodal discourse analysis is based on multimodal symbolic grammar, construction grammar, and visualization theory, which can create a multimodal context for natural communication in dictionaries, activate user cognitive associations, and reduce the negative transfer of native language. The design of multimodal dictionary definitions needs to consider four levels: theory, requirements, technology, and resources, including the role of multimodal discourse analysis, second language teaching needs, the influence of integrated media, and the identification and extraction of large language models and dictionary metadata.