U+21B9 Leftwards Arrow To Bar Over Rightwards Arrow To Bar

U+21B9 was added in Unicode version 1.1 in 1993. It belongs to the block U+2190 para U+21FF Arrows in the U+0000 para U+FFFF Basic Multilingual Plane.

This character is a Otro símbolo and is commonly used, that is, in no specific script. El carácter es también conocido como tab with shift tab.

The glyph is not a composition. Its width in East Asian texts is determined by its context. It can be displayed wide or narrow. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. The word that U+21B9 forms with similar adjacent characters prevents a line break inside it.

The CLDR project calls this character “flecha hacia la izquierda con barra sobre flecha hacia la derecha con barra” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: barra, derecha, flecha, izquierda, sobre.