The semicolon (;) is a punctuation mark with several uses.
The colon is a punctuation mark consisting of two equally sized dots centered on the same vertical line. In Unicode, it is encoded at U+003A : colon (HTML: : ). [ edit ] Usage
A dash is a punctuation mark, similar to a hyphen or minus sign but differing primarily in length and serving different functions. The most common versions of the dash are the en dash ( – ) and the em dash ( — ), named for the length of a typeface 's lower-case n and upper-case M respectively.