U+030B "̋" Combining Double Acute Accent Unicode Character

U+030B "̋" Combining Double Acute Accent is a diacritical mark used in written language, most notably within the Hungarian alphabet to indicate a long vowel, such as in "ő" and "ű". It is designed to combine with a preceding base character, modifying its pronunciation by signifying an extended duration or specific vowel quality. As a combining character, it does not take up space on its own but is applied directly above the letter it modifies, distinguishing it from the single acute accent and playing a crucial role in differentiating meaning in orthographies where it is standard.