U+00AA "ª" Feminine Ordinal Indicator Unicode Character

U+00AA "ª" Feminine Ordinal Indicator is a typographic symbol used in several Romance languages, most notably Spanish, Portuguese, and Galician, to denote a feminine ordinal number, such as "1ª" for "primera" (first) or "2ª" for "segunda" (second). It appears as a superscript lowercase letter "a" and is typically placed after a numeral to indicate gender and order, contrasting with its masculine counterpart, the masculine ordinal indicator (U+00BA "º"). While often visually similar to the superscript letter "a" typed manually, the dedicated Unicode character ensures consistent rendering and proper alignment across digital text, and it can be input on many systems using keyboard shortcuts, such as Alt+0170 on Windows.

General Properties

Code Point	U+00AA
Version Added	1.1
Name	Feminine Ordinal Indicator
Block	Latin-1 Supplement
General Category	Other Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Super
Decomposition Mapping	"a" U+0061 Latin Small Letter A

Encodings

HTML Decimal Encoding	ª
HTML Hex Encoding	ª
UTF-8 Encoding	0xC2 0xAA
UTF-16 Encoding	0x00AA
UTF-32 Encoding	0x000000AA
C/C++/Java Escape	\u00aa

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Ambiguous (Alphabetic or Ideographic)
East Asian Width	Ambiguous
Lowercase	Yes
Other Lowercase	Yes
Cased	Yes
Changes When NFKC Casefolded	Yes
NFKC Casefold	"a" U+0061 Latin Small Letter A
NFKC Simple Casefold	"a" U+0061 Latin Small Letter A
Script	Latin
Script Extensions	Latin
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	Lower