The dictionary explains about 7000 words and expressions related to architecture or construction and not peculiar in this sense to the everyday language. The book will help someone who wants to expand their understanding of architecture as a man-made habitat. The historical and cultural heritage on the territory of present-day Russia was created by different peoples. Therefore, lexemes in this explanatory dictionary are not reduced only to Russian-speaking. The book is primarily addressed to the reader, who tries to recognize the diverse features of this man-made environment, correctly name them and expand the composition of the architectural heritage protected by the state. Such a reader can be an art historian, restorer, museum worker, architect and every person of the 21st century, ready to peer curiously into the past.