SZM/首字母 is a Blender add-on from developer Xinyu Zhu that improves how you find nodes in the add node menu and modifier menu. Rather than typing full English names, you can search using Chinese characters' pinyin initials, and the add-on also accepts full pinyin, Chinese characters, and English names.
Search behaviour is configurable through the add-on preferences. You can customize the index, choose to search by English name, and enable optional ambiguous phonetic settings (n=l, f=h, r=l). The add-on ships as an extension for Blender 4.2 LTS and later, with a legacy version available for older Blender releases. On Blender 4.0 and later you search from the add node menu; on Blender 3.X you use the F3 search menu.
The internal node dictionary is a static list based on Blender 4.3, so it does not cover custom node groups or nodes from other Blender builds and add-ons. It was sponsored and tested by 执念净化, and the developer welcomes community pull requests to expand the dictionary.