U+A78B "Ꞌ" Latin Capital Letter Saltillo Unicode Character

U+A78B "Ꞌ" Latin Capital Letter Saltillo is a specialized letter used primarily in the orthography of certain indigenous languages of Mexico, such as various Oto-Manguean languages (including Zapotec and Mixe), where it represents a glottal stop, a brief catch in the throat sound similar to the middle of the English exclamation "uh-oh." Its lowercase counterpart is U+A78C "ꞌ" Latin Small Letter Saltillo, and the character is distinct from the similar-looking apostrophe or modifier letter turned comma, as it is designed to function as a true alphabetic letter with its own uppercase form in writing systems where capitalizing the glottal stop is grammatically necessary. The Saltillo holds cultural and linguistic significance, helping to preserve and standardize the written representation of these indigenous languages.