This article is an overview of a multilingual phraseological database called Colidioms. It is designed to describe phraseological systems of different languages. That means that Colidioms is aimed to record meanings, as well as semantic and syntactic combina- torial properties of phrasemes. The aim of Colidioms is to reconcile the complex nature of phrasemes and compile a pertinent easy-to-use tool. The way to produce such tool is not evident, because many of different aspects have to be taken into consideration. Colidioms is based on recent technological advances. It combines tradition and inno- vation. It is a thin client application. As of today, however, it contains very few entries and still needs improvements, such as modifications to make it more user-friendly. Within the scope of this article, four points are considered. After the introduction, the central organizing principle, based on the concept of notions is studied. A more detailed description of Colidioms is given in sections 3 and 4, respectively. Finally, some conclusions are made based on our findings.