The Zhongwen Reader plugin helps users build their Chinese vocabulary directly within their notes using hover-based translations and integrated vocab management. When enabled, hovering over Chinese text shows pinyin, simplified and traditional forms, and definitions using the CC-CEDICT dictionary. Users can highlight HSK-level vocabulary, save words and their context into a vocab list, and view this list via a dedicated sidebar. Example sentences are automatically captured when saving a word and can be added to existing entries if found in new contexts. The plugin also supports generating spaced repetition flashcards from saved vocab for use with compatible plugins.