Unicode: 007D. Raw operator. Equivalent to the ordinary ASCII character with code 125. Extensible character.
Unicode: 005D. Raw operator. Equivalent to the ordinary ASCII character with code 93. Extensible character. Not the same as \[RightModified].
Unicode: 0029. Raw operator. Equivalent to the ordinary ASCII character with code 41. Extensible character.
Unicode: 0009. Spacing character. Equivalent to the ordinary ASCII character with code 9. Can be entered in strings as ∖t.
Unicode: 005F. Raw operator. Equivalent to the ordinary ASCII character with code 95. OverscriptBox[x, _] is interpreted as OverBar[x]. UnderscriptBox[x, _] is interpreted as ...
Unicode: 007C. Raw operator. Equivalent to the ordinary ASCII character with code 124. Extensible character.
Unicode: 221F. Letter-like form. Used in geometry to indicate a right angle, as in the symbol ∟ ABC.
Unicode: 301B. Alias: Esc ]] Esc. m 〚i,j,… 〛 is by default interpreted as Part[m,i,j,…]. Extensible character; grows by default to limited size.
Unicode: F3B2. Spacing character. Interpreted by default as equivalent to \[RawSpace].
Unicode: 2423. Alias: Esc space Esc. Spacing character. Interpreted by default as equivalent to \[RawSpace].