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, an
"Kai Tak" road signs in Sun Po Kong, Hong Kong 異體字(啟–啓)
In Japanese language, Ryakuji are colloquial simplifications of kanji.
Variant Chinese characters
…frozen since Unicode 4.1, except to fix a few past mistakes that were forgotten during the Han unification process for the review of normative sources). Ryakuji – Form of shorthand for writing kanji Z-variant – Glyphs with minor typographical differences…
Sign reading "umbrella stand" (仐おき, kasa-oki, standard form 傘おき, showing ryakuji form of 傘: 仐 (人 + 十), with inner 人 omitted. Compare simplified Chinese 伞.
Price tag reading ¥400, 特価品 (bargain item), showing ryakuji form of 品, with bottom squares connected