Universal Networking Language (UNL) is a computer language that enables computers to process information and knowledge across the language barriers. It is an artificial language that replicates the functions of natural languages in human communication. The main goal of the UNL system, which allows users to visualize websites in their native languages, is to provide a common representation for accessing Internet of multilingual. For this common representation, lexical knowledge is a critical issue in natural language processing systems. We have been working to include Bangla in the UNL system and in this paper we have discussed about the Bangla Word Dictionary that we have designed to include in the system.