U+05A3 HEBREW ACCENT MUNAH

U+05A3 was added to Unicode in version 2.0 (1996). It belongs to the block Hebrew in the Basic Multilingual Plane.

This character is a Nonspacing Mark and is mainly used in the Hebrew script.

The glyph is not a composition. It has a Neutral East Asian Width. In bidirectional context it acts as Nonspacing Mark and is not mirrored. In text U+05A3 behaves as Combining Mark regarding line breaks. It has type Extend for sentence and Extend for word breaks. The Grapheme Cluster Break is Extend.

The Wikipedia has the following information about this codepoint:

The Munach (Hebrew: מֻנַּח, also spelled Munah or Munakh), translating to English as "to rest," is a common cantillation sound. In Sephardi and Oriental traditions it is often called Shofar holekh. It is marked with a right angle below the corresponding word.

The munach is found in various groups, including the Katon, Etnachta, and Segol groups. One or more munachs can be followed by many different trope sounds, including Zakef katon, Etnachta, Rivia, Zarka, Segol, and Pazer. It is normally used when the number of syllables in a phrase are so long that an extra note is required to accommodate all the syllables.

The munach is normally a short note. But when it is the first of two munachs followed by a Revia, it has a longer melody. In this case it may also be called legarmeh (מֻנַּח לְגַרְמֵ֣הּ׀).