U+FC5F "ﱟ" Arabic Ligature Shadda with Kasratan Isolated Form Unicode Character

U+FC5F "ﱟ" Arabic Ligature Shadda with Kasratan Isolated Form is a typographic representation found in the Arabic script presentation forms block, designed to combine a shadda diacritic, which indicates gemination or doubling of a consonant, with a kasratan diacritic, which marks an indefinite genitive case ending with an "in" sound, into a single ligature for isolated use. This character is primarily intended for use in calligraphic and Quranic text rendering, where such combined diacritics enhance visual clarity and traditional presentation of Arabic script, especially in older or highly stylized fonts. It differs from dynamically composed sequences of separate diacritics by providing a precomposed form that ensures consistent spacing and appearance in contexts like digital typography or text processing for religious or scholarly documents.

General Properties

Code Point	U+FC5F
Version Added	1.1
Name	Arabic Ligature Shadda with Kasratan Isolated Form
Block	Arabic Presentation Forms-A
General Category	Other Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Arabic Letter
Decomposition Type	Isolated
Decomposition Mapping	"SP" U+0020 Space "ٍ" U+064D Arabic Kasratan "ّ" U+0651 Arabic Shadda

Encodings

HTML Decimal Encoding	ﱟ
HTML Hex Encoding	ﱟ
UTF-8 Encoding	0xEF 0xB1 0x9F
UTF-16 Encoding	0xFC5F
UTF-32 Encoding	0x0000FC5F
C/C++/Java Escape	\ufc5f

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Changes When NFKC Casefolded	Yes
NFKC Casefold	"SP" U+0020 Space "ٍ" U+064D Arabic Kasratan "ّ" U+0651 Arabic Shadda
NFKC Simple Casefold	"SP" U+0020 Space "ٍ" U+064D Arabic Kasratan "ّ" U+0651 Arabic Shadda
Script	Arabic
Script Extensions	Arabic
Indic Syllabic Category	Other
ID Start	Yes
ID Continue	Yes
Alphabetic	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Alphabetic letter
Sentence Break	OLetter