Hanifi Rohingya Vowel O (U+10D21) is a Unicode other letter from the Hanifi Rohingya block. It resides on Plane 1 (SMP, Supplementary Multilingual Plane), has bidirectional class AL (right-to-left (Arabic letter)), is not mirrored, and has combining class 0 (Not Reordered). In HTML it can be written as 𐴡 or 𐴡. Because it is outside the Basic Multilingual Plane, proper font support is required; otherwise a fallback box may be shown.