Tibetan Vowel Sign U (U+0F74) is a Unicode nonspacing mark from the Tibetan block. It resides on Plane 0 (BMP, Basic Multilingual Plane), has bidirectional class NSM (nonspacing mark), is not mirrored, and has combining class 132 (Fixed Position Class Ccc132). In HTML it can be written as ུ or ུ.