This character is a Other Letter and is mainly used in the Han script. The Unihan Database defines it as repose, serenity, peace; peaceful. Its Pīnyīn pronunciation is níng.
The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. U+5BE7 offers a line break opportunity at its position, except in some numeric contexts. The glyph can be confused with 3 other glyphs.
The Wikipedia has the following information about this codepoint:
宁 may refer to:
Ning (surname), an uncommon Chinese surname
Nanjing, a city in China (an abbreviation of the former name Jiangning)
Ningxia, an autonomous region of China (an abbreviation formed by taking the first character)