Unicode: 03DA. Aliases: Esc Sti Esc, Stigma Esc. Special Greek letter.
Unicode: 03A4. Aliases: Esc T Esc, Esc Tau Esc. Greek letter. Not the same as English T.
Unicode: 0164. Alias: Esc Tv Esc. Letter. Included in ISO Latin-2.
Unicode: 0398. Aliases: Esc Th Esc, Esc Theta Esc, Esc Q Esc. Greek letter. Not the same as \[DiscreteRatio].
Unicode: 00DC. Alias: Esc U" Esc. Letter. Included in ISO Latin-1.
Unicode: 03A5. Aliases: Esc U Esc, Esc Upsilon Esc. Greek letter. Not commonly used. Used in physics for bOverscriptBox[b, _] particles, and in the quantum theory of ...
Unicode: 016E. Alias: Esc Uo Esc. Letter. Included in ISO Latin-1.
Unicode: 039E. Aliases: Esc X Esc, Esc Xi Esc. Greek letter. Not commonly used. Used for grand canonical partition function, cascade hyperon and regular language complexity.
Unicode: 0396. Aliases: Esc Z Esc, Esc Zeta Esc. Greek letter. Used in TraditionalForm for JacobiZeta. Not the same as English Z.
Unicode: 017D. Alias: Esc Zv Esc. Letter. Included in ISO Latin-2.