In this paper we study interlingual homonymy. We compare the Russian language with the languages of other language groups and how homonymy influences the process of speech communication and how speakers understand each other. Interlanguage correspondences attract interest, since if people inaccurately recognize words, the utterance can change its meaning. To a greater extent this is relevant for visual perception of homonyms. Examples of interlanguage homonyms of various linguistic structures are given. We implemented the basis module of the «Chitaem s gub» («Читаем с губ») multimedia program; the program was developed by the authors to teach users to distinguish individual speech elements with similar visemes.