Unicode: 0392. Aliases: Esc B Esc, Esc Beta Esc. Greek letter. Used in TraditionalForm for Beta. Not the same as English B.
Unicode: 0393. Aliases: Esc G Esc, Esc Gamma Esc. Greek letter. Used in TraditionalForm for Gamma.
Unicode: 03A6. Aliases: Esc Ph Esc, Esc Phi Esc, Esc F Esc. Greek letter. Used in TraditionalForm for LerchPhi.
Unicode: 0396. Aliases: Esc Z Esc, Esc Zeta Esc. Greek letter. Used in TraditionalForm for JacobiZeta. Not the same as English Z.
Unicode: 03BB. Aliases: Esc l Esc, Esc lambda Esc. Greek letter. Used in TraditionalForm for ModularLambda.
\[Psi]
(Mathematica Character Name) Unicode: 03C8. Aliases: Esc ps Esc, Esc psi Esc, Esc y Esc. Greek letter. Used in TraditionalForm for PolyGamma.
Convert To opens a submenu for converting a cell to another form, format, or display form.
SingleLetterItalics is an option for Cell that specifies whether single-letter names should be displayed in italics.
Unicode: 2612.
Unicode: 00A8.