\[ShortLeftArrow] (Mathematica Character Name)

Unicode: F526. x  y is by default interpreted as ShortLeftArrow[x,y]. Infix arrow operator. Extensible character.

\[ShortRightArrow] (Mathematica Character Name)

Unicode: F525. x  y is by default interpreted as ShortRightArrow[x,y]. Infix arrow operator. Not the same as \[Rule]. Extensible character.

\[SixPointedStar] (Mathematica Character Name)

Unicode: 2736. Alias: Esc *6 Esc. Letter-like form. Not the same as the operator \[Star].

\[SpaceIndicator] (Mathematica Character Name)

Unicode: 2423. Alias: Esc space Esc. Spacing character. Interpreted by default as equivalent to \[RawSpace].

\[SpadeSuit] (Mathematica Character Name)

Unicode: 2660. Letter-like form.

\[SphericalAngle] (Mathematica Character Name)

Unicode: 2222. Letter-like form. Used in geometry to indicate a spherical angle, as in the symbol ∢ ABC.

\[SquareIntersection] (Mathematica Character Name)

Unicode: 2293. Infix operator. x ⊓ y is by default interpreted as SquareIntersection[x,y].

\[SquareSubsetEqual] (Mathematica Character Name)

Unicode: 2291. Infix set relation operator. x ⊑ y is by default interpreted as SquareSubsetEqual[x,y].

\[SquareSupersetEqual] (Mathematica Character Name)

Unicode: 2292. Infix set relation operator. x ⊒ y is by default interpreted as SquareSupersetEqual[x,y].

\[SubsetEqual] (Mathematica Character Name)

Unicode: 2286. Alias: Esc sub= Esc. Infix set relation operator. x ⊆ y is by default interpreted as SubsetEqual[x,y].