The "Dictionary of Manchu in Five Languages Created by Imperial Command," also known as the "Five-Language Mirror," is a comprehensive reference work distinguished by its unique arrangement of entries by subject matter. This structure allows for the content to be understood in a thematic context rather than being sorted alphabetically. This is particularly advantageous for exploring complex word components and compounds in the five languages: Manchu, Tibetan, Mongolian, Turkic, and Chinese. The indices for each language provide an innovative way to search through all word variants and spellings, enabling deeper analysis and a better understanding of linguistic nuances. Thus, the work is not only a dictionary but also a valuable tool for linguists, historians, and anyone interested in engaging with the respective languages and cultures.