| Also, diphthongization in modern dialects has been leveled due to the widespread use of standard language. |
| Vowel breaking or diphthongization is a vowel shift in which a monophthong becomes a diphthong. |
| In historical linguistics, vowel breaking, vowel fracture, or diphthongization is the change of a monophthong into a diphthong or triphthong. |
| Nonetheless, a number of studies suggest that at least diphthongization and nasal and lateral depalatalization may be unproductive in Spanish. |
| Note in parentheses that diphthongization may be viewed in a similar light. |
| Only Lorrainian and Low Hessian, of all the Rhine Franconian area, remained unaffected by diphthongization. |
