\[DiamondSuit] (Mathematica Character Name)

Unicode: 2662. Letter-like form. Sometimes used to indicate the end of a proof. Not the same as \[Diamond] or \[EmptyDiamond].

\[DifferenceDelta] (Mathematica Character Name)

Unicode: 2206 Alias: Esc diffd Esc. Prefix operator with built-in evaluation rules. _ky is by default interpreted as DifferenceDelta[y,k]. You can use \[InvisibleComma] in ...

\[DifferentialD] (Mathematica Character Name)

Unicode: F74C. Alias: Esc dd Esc. Compound operator with built-in evaluation rules.  can only be interpreted by default when it appears with ∫ or other integral operators. ∫ ...

\[Digamma] (Mathematica Character Name)

Unicode: 03DD. Aliases: Esc di Esc, Esc digamma Esc. Special Greek letter. Analogous to English w. Sometimes used to denote PolyGamma[x].

\[DirectedEdge] (Mathematica Character Name)

Unicode: 0F3D5. Aliases: Esc de Esc. Infix operator with built-in evaluation rules. uv is by default interpreted as DirectedEdge[u,v].

\[DiscreteRatio] (Mathematica Character Name)

Unicode: F4A4 Alias: Esc dratio Esc. Prefix operator with built-in evaluation rules. _ky is by default interpreted as DiscreteRatio[y,k]. You can use \[InvisibleComma] in ...

\[DiscreteShift] (Mathematica Character Name)

Unicode: F4A3 Alias: Esc shift Esc. Prefix operator with built-in evaluation rules. _ky is by default interpreted as DiscreteShift[y,k]. You can use \[InvisibleComma] in the ...

\[DiscretionaryHyphen] (Mathematica Character Name)

Unicode: 00AD. Alias: Esc dhy Esc. Spacing character. Used to override hyphenation points inside a word.

\[DiscretionaryLineSeparator] (Mathematica Character Name)

Unicode: F76E. Alias: Esc dlsep Esc. Spacing character. Used to invisibly denote a place where automatic line breaking should be allowed.

\[DiscretionaryPageBreakAbove] (Mathematica Character Name)

Unicode: F3BF Alias: Esc dpba Esc. Spacing character. Used to invisibly denote a place where automatic page-breaking should be allowed. The page break occurs immediately ...