Grantha Vowel Sign Au (U+1134C) is a Unicode spacing combining mark from the Grantha block. It resides on Plane 1 (SMP, Supplementary Multilingual Plane), has bidirectional class L (left-to-right), is not mirrored, and has combining class 0 (Not Reordered). In HTML it can be written as 𑍌 or 𑍌. Because it is outside the Basic Multilingual Plane, proper font support is required; otherwise a fallback box may be shown.