This application provides us a great tool for accessing the Legal Lexicon for Ministry of Economy and Finance of Cambodia which is published as book in 2021. The legal terms are organized by Khmer alphabetical order attached with its single or multiple sectors where they belong to, legal definitions and references which provide ease to user to find the source of the keyword. Importantly, with this application, it facilitates user in searching by keyword as it searches within the list of the keywords and also its definitions. At the same time of searching, for later use, the application records as well the list of keywords that user used to search. More advanced than this, this application is design with portrait and landscape mode and user also can share the definition of specific keyword to other applications especially social networks.