U+2091 "ₑ" Latin Subscript Small Letter E Unicode Character

U+2091 "ₑ" Latin Subscript Small Letter E is a typographic glyph used primarily in phonetic transcription, mathematical notation, and scientific contexts to represent a small, lowered version of the letter E. It belongs to the Superscripts and Subscripts block in Unicode and is often employed in fields like linguistics for marking specific vowel qualities or in chemistry and physics as a subscript in formulas or variable names. This character allows for precise, space-efficient notation without altering line spacing, and it is distinct from ordinary subscript formatting because it has its own dedicated code point, ensuring consistent display across different fonts and platforms.

General Properties

Code Point	U+2091
Version Added	4.1
Name	Latin Subscript Small Letter E
Block	Superscripts and Subscripts
General Category	Modifier Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Sub
Decomposition Mapping	"e" U+0065 Latin Small Letter E

Encodings

HTML Decimal Encoding	ₑ
HTML Hex Encoding	ₑ
UTF-8 Encoding	0xE2 0x82 0x91
UTF-16 Encoding	0x2091
UTF-32 Encoding	0x00002091
C/C++/Java Escape	\u2091

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Lowercase	Yes
Other Lowercase	Yes
Case Ignorable	Yes
Cased	Yes
Changes When NFKC Casefolded	Yes
NFKC Casefold	"e" U+0065 Latin Small Letter E
NFKC Simple Casefold	"e" U+0065 Latin Small Letter E
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