U+2FF1 "⿱" Ideographic Description Character Above to Below Unicode Character

U+2FF1 "⿱" Ideographic Description Character Above to Below is a special symbol used in the Unicode standard to describe the structure of East Asian ideographs, particularly Chinese characters (hanzi) and their Japanese kanji or Korean hanja counterparts. It indicates that a complex character is composed of two components arranged vertically, with one component placed above the other, such as in the character "家" (jiā, meaning home), which is formed by the radical for roof above the component for pig. This character is not meant for regular text, but serves as a semantic tool for linguists, lexicographers, and software developers to represent the spatial composition of ideographs without relying on actual graphic images, facilitating digital encoding and font development.

General Properties

Code Point	U+2FF1
Version Added	3.0
Name	Ideographic Description Character Above to Below
Block	Ideographic Description Characters
General Category	Other Symbol
Canonical Combining Class	Not Reordered
Bidirectional Class	Other Neutral

Encodings

HTML Decimal Encoding	⿱
HTML Hex Encoding	⿱
UTF-8 Encoding	0xE2 0xBF 0xB1
UTF-16 Encoding	0x2FF1
UTF-32 Encoding	0x00002FF1
C/C++/Java Escape	\u2ff1

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Ideographic
East Asian Width	Wide
Script	Common
Script Extensions	Han Tangut
Indic Syllabic Category	Other
Vertical Orientation	Upright
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Other
Sentence Break	Other
IDS Binary Operator	Yes