U+FC21 "ﰡ" Arabic Ligature Sad with Meem Isolated Form Unicode Character

U+FC21 "ﰡ" Arabic Ligature Sad with Meem Isolated Form is a typographic presentation form used in the Arabic script, representing a ligature that combines the letters Sad (ص) and Meem (م) into a single glyph, specifically in its isolated form for standalone use. This character belongs to the Arabic Presentation Forms-A block, which is designed to accommodate contextual shaping and calligraphic styles common in traditional Arabic writing, such as in the Nastaliq or Naskh scripts. Its primary purpose is to ensure accurate visual rendering and support for legacy text encoding, where such ligatures are necessary for proper display in publications or digital environments that require precise character shapes.

General Properties

Code Point	U+FC21
Version Added	1.1
Name	Arabic Ligature Sad with Meem 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	"ص" U+0635 Arabic Letter Sad "م" U+0645 Arabic Letter Meem

Encodings

HTML Decimal Encoding	ﰡ
HTML Hex Encoding	ﰡ
UTF-8 Encoding	0xEF 0xB0 0xA1
UTF-16 Encoding	0xFC21
UTF-32 Encoding	0x0000FC21
C/C++/Java Escape	\ufc21

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	"ص" U+0635 Arabic Letter Sad "م" U+0645 Arabic Letter Meem
NFKC Simple Casefold	"ص" U+0635 Arabic Letter Sad "م" U+0645 Arabic Letter Meem
Script	Arabic
Script Extensions	Arabic
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Alphabetic	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Alphabetic letter
Sentence Break	OLetter