Dvojhlásky
Dvojhlásky, also known as diphthongs, are combinations of two vowels that are pronounced as a single sound. They are common in many languages, including English, Czech, and Russian. In English, examples of diphthongs include "oy" in "boy" and "ai" in "day." In Czech, diphthongs are more prevalent, with examples such as "ou" in "kouzelník" (magician) and "au" in "pauza" (pause). Diphthongs are formed when one vowel glides into another, creating a smooth transition between the two sounds. They are distinct from vowel combinations where the two vowels are pronounced separately, such as "ea" in "read." The study of diphthongs is important in linguistics as they provide insights into the phonetic and phonological systems of languages.