Unicode: F750. Alias: Esc fsci Esc. Letter-like form. Used as a dingbat.
Unicode: 25FC. Alias: Esc fssq Esc. Letter-like form. Used as a dingbat. Not the same as \[SelectionPlaceholder].
Unicode: 25B2. Letter-like form.
Unicode: 25AA. Alias: Esc fvssq Esc. Letter-like form. Used as a dingbat.
Unicode: 2605. Alias: Esc *5 Esc. Letter-like form. Not the same as the operator \[Star].
Unicode: 2200. Alias: Esc fa Esc. Compound operator. ∀_xy is by default interpreted as ForAll[x,y].
Unicode: F721. Alias: Esc :-@ Esc. Letter-like form.
Unicode: 2137. Alias: Esc gi Esc. Hebrew letter. Used occasionally in pure mathematics in the theory of transfinite cardinals.
Unicode: F753. Alias: Esc gci Esc. Letter-like form. Used as a dingbat. Generated internally by Mathematica, rather than being an explicit font character.
Unicode: F752. Alias: Esc gsq Esc. Letter-like form. Used as a dingbat. Generated internally by Mathematica, rather than being an explicit font character.