Unicode: F7D4. Alias: Esc ent Esc. Letter-like form. Representation of the Enter key on a keyboard. Used in describing how to type textual input.
Unicode: 03F5. Aliases: Esc e Esc, Esc epsilon Esc. Greek letter. Not the same as \[Element].
Unicode: 2242. Alias: Esc =~ Esc. Infix similarity operator. x ≂ y is by default interpreted as EqualTilde[x,y].
Unicode: 21CC. Alias: Esc equi Esc. Infix arrow-like operator. x ⇌ y is by default interpreted as Equilibrium[x,y]. Used in chemistry to represent a reversible reaction. ...
Unicode: 29E6 Alias: Esc equiv Esc. Infix operator with built-in evaluation rules. x ⧦ y is by default interpreted as Equivalent[x,y]. Not the same as \[DoubleLeftRightArrow] ...
Unicode: F767. Uninterpretable element. Generated to indicate the position of a syntax error in messages produced by functions like Get and ToExpression. Shown as ^^^ in ...
\[Eta]
(Mathematica Character Name) Unicode: 03B7. Aliases: Esc et Esc, Esc eta Esc, Esc h Esc. Greek letter. Used in TraditionalForm for DedekindEta.
\[Eth]
(Mathematica Character Name) Unicode: 00F0. Alias: Esc d- Esc. Letter. Included in ISO Latin-1. Used in Icelandic and Old English.
\[Euro]
(Mathematica Character Name) Unicode: 20AC. Letter-like form. Sign for euro European currency, as in € 5.
Unicode: 25CF. Alias: Esc fci Esc. Letter-like form. Used as a dingbat.