The article focuses on the lexical units borrowed from the Arabian language. The Arabisms of the theme group of ‘Buildings, structures, construction materials’ are analyzed. The dictionary definitions of these words from the Arabian dictionary Al Muajam Al Waseet (2004) are compared to the definitions represented in the Arabian-Russian and Russian-Arabian dictionaries, in the dictionaries of foreign words of different authors. The author considers how the borrowed lexical units function in the Russian speech and identifies the peculiarities of their adjustment to the Russian language.