Translingual

Diacritical mark

̣

1. A diacritical mark denoting retroflex consonants in many languages.

Vietnamese

Diacritical mark

̣

1. A diacritical mark of the Latin script, called dấu nặng ‎(“heavy mark”) in Vietnamese, and found on Ạ/ạ, Ặ/ặ, Ậ/ậ, Ẹ/ẹ, Ệ/ệ, Ị/ị, Ọ/ọ, Ộ/ộ, Ợ/ợ, Ụ/ụ, Ự/ự and Ỵ/ỵ. Used to indicate mid-falling, glottalized, short tone.

Usage note

In Vietnamese signmaking, this tone mark may be written as a vertical line, much like ̩.