\[EmptyCircle] (Mathematica Character Name)

Unicode: 25CB. Alias: Esc eci Esc. Letter-like form. Not the same as the infix operator \[SmallCircle].

\[EmptyDownTriangle] (Mathematica Character Name)

Unicode: 25BD. Letter-like form. Not the same as \[Del].

\[EmptySet] (Mathematica Character Name)

Unicode: 2205. Alias: Esc es Esc. Letter-like form. Not the same as \[CapitalOSlash] or \[Diameter].

\[EmptySmallSquare] (Mathematica Character Name)

Unicode: 25FB. Alias: Esc essq Esc. Letter-like form. Not the same as the operator \[Square]. Not the same as \[Placeholder].

\[EqualTilde] (Mathematica Character Name)

Unicode: 2242. Alias: Esc =~ Esc. Infix similarity operator. x ≂ y is by default interpreted as EqualTilde[x,y].

\[Equivalent] (Mathematica Character Name)

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] ...

\[Euro] (Mathematica Character Name)

Unicode: 20AC. Letter-like form. Sign for euro European currency, as in € 5.

\[FilledCircle] (Mathematica Character Name)

Unicode: 25CF. Alias: Esc fci Esc. Letter-like form. Used as a dingbat.

\[FilledDownTriangle] (Mathematica Character Name)

Unicode: 25BC. Letter-like form.

\[FilledRectangle] (Mathematica Character Name)

Unicode: 25AE. Letter-like form. Used in mathematics to indicate the end of a proof.