These days it is getting more and more important to provide multilingual support for user interface, configuration data and some of transactional data. While the facility for multilingual support of user interface is provided by technology stack like Java, JSF and etc, multilingual support for configuration data/transactional data requires application developers to design application's data structure in multilingual manner. This note discusses several multilingual data structures and advantage/disadvantage of those structures. Also the sample implementations with XML and RDBMS are discussed.