Caron
About
A caron, háček or haček also known as a hachek, wedge, check, kvačica, strešica, mäkčeň, varnelė, inverted circumflex, inverted hat, flying bird, inverted chevron, is a diacritic (◌̌) commonly placed over certain letters in the orthography of some languages to indicate a change in the related letter's pronunciation.
