Unicode: 0027. Raw operator. Equivalent to the ordinary ASCII character with code 39.
Unicode: 000D. Spacing character. Equivalent to the ordinary ASCII character with code 13. Can be entered as ∖r. Not always the same as \[NewLine].
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: 002F. Raw operator. Equivalent to the ordinary ASCII character with code 47. Extensible character; grows by default to limited size.
Unicode: 0009. Spacing character. Equivalent to the ordinary ASCII character with code 9. Can be entered in strings as ∖t.
Unicode: 007E. Raw operator. Equivalent to the ordinary ASCII character with code 126. In addition to one-dimensional uses, OverscriptBox[x, ~] is by default interpreted as ...
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.