This character is a Math Symbol and is commonly used, that is, in no specific script.
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 mirrored into Reverse Solidus Operator. If its East Asian Width is “narrow”, U+2215 forms a word with similar characters, which prevents a line break inside it. Otherwise it allows line breaks around it, except in some numeric contexts. The glyph can be confused with one other glyph.
The CLDR project calls this character “division slash” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: slash, stroke, virgule.
This character is distinct from U+2044 FRACTION SLASH. It is
intended to represent the operation of dividing, not an actual fraction. For a
discussion see this detailed answer on
SuperUser.
The Wikipedia has the following information about this codepoint:
The slash is the oblique slanting line punctuation mark /. It is also known as a stroke, a solidus, a forward slash and several other historical or technical names. Once used to mark periods and commas, the slash is now used to represent division and fractions, exclusive 'or' and inclusive 'or', and as a date separator.
A slash in the reverse direction is known as a backslash.