U+1DA64 SIGNWRITING TEETH ON TONGUE MOVEMENT

The Unicode character U+1DA64, officially named SIGNWRITING TEETH ON TONGUE MOVEMENT, was introduced in Unicode version 8.0. It is part of the Sutton SignWriting block, which belongs to the Supplementary Multilingual plane.

Categorized technically as a Nonspacing Mark, this character typically falls under the Sgnw script. In terms of text layout and rendering, the glyph is not a composition and has no designated width in East Asian typography. When placed in bidirectional text, it behaves as an Unknown character. Its visual representation remains not mirrored regardless of the reading direction.