Словарь ЦС is an Android application that helps users search for meanings of unknown words in Church Slavonic language. The dictionary database is downloaded from the internet, and once downloaded, the app can be used offline. The app can also be integrated with other Church Slavonic language apps such as "Bible ЦС" and "Library ЦС," allowing users to search for unknown words directly from those apps.

In addition to the dictionary, the app contains reference materials about the Church Slavonic alphabet and the peculiarities of writing Church Slavonic numbers. At present, the available word list is not final, and the database will be periodically expanded and updated.

Overall, Словарь ЦС is a useful tool for anyone interested in Church Slavonic language. However, the app lacks any features beyond the dictionary and reference material, and the discussion about the project is limited only to Discord.