Two road signs in San Po Kong, Hong Kong indicating the same name for Kai Tak with different variants (啓 and 啟) of the character for "Kai".
Chinese characters may have several variant forms—visually distinct glyphs that represent the same underlying meaning and pronunciation. Variants of a given character are allographs of one another, and many are directly analogous to allographs present in the English alphabet, such as the double-storey ⟨a⟩ and single-storey ⟨ɑ⟩ variants of the letter A, with the latter more commonly appearing in handwriting. Some contexts require usage of specific variants.
Variant character
Regional variants of the character 返 as rendered by the Source Han Sans font family