\[CurlyEpsilon] (Mathematica Character Name)

Unicode: 03B5. Aliases: Esc ce Esc, Esc cepsilon Esc. Greek letter. Not the same as \[Element]. Used in physics for Fermi energy and dielectric constant.

\[CurlyTheta] (Mathematica Character Name)

Unicode: 03D1. Aliases: Esc cq Esc, Esc cth Esc, Esc ctheta Esc. Greek letter. Used in TraditionalForm for EllipticTheta and RiemannSiegelTheta.

\[Dagger] (Mathematica Character Name)

Unicode: 2020. Alias: Esc dg Esc. Letter-like form. x^† is by default interpreted as SuperDagger[x]. Not the same as \[ConjugateTranspose].

\[Del] (Mathematica Character Name)

Unicode: 2207. Alias: Esc del Esc. Prefix operator. ∇f is by default interpreted as Del[f]. Used in vector analysis to denote gradient operator and its generalizations. Used ...

\[DHacek] (Mathematica Character Name)

Unicode: 010F. Alias: Esc dv Esc. Letter. Included in ISO Latin-2.

\[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].

\[Divide] (Mathematica Character Name)

Unicode: 00F7. Alias: Esc div Esc. Infix operator with built-in evaluation rules. x ÷ y is by default interpreted as Divide[x,y] or x/y. x ÷ y ÷ z groups as (x ÷ y) ÷ z.

\[DotlessI] (Mathematica Character Name)

Unicode: 0131. Letter. Used when an i will have an overscript on top. May or may not match the ordinary i from the text font.

\[DoubledGamma] (Mathematica Character Name)

Unicode: F74A. Alias: Esc gg Esc. Letter-like form. Not by default assigned any interpretation in StandardForm. Interpreted as EulerGamma in TraditionalForm. Not the same as ...