New Tai Lue Vowel Sign Aay (U+19BB) is a Unicode other letter from the New Tai Lue block. It resides on Plane 0 (BMP, Basic 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 ᦻ or ᦻ.