Colon (punctuation) Colon (punctuation) The colon ( : ) is a punctuation mark consisting of two equally sized dots centered on the same vertical line. A colon precedes an explanation or an enumeration, or list. A colon is also used with ratios, titles and subtitles of books, city and publisher in bibliographies, Biblical citations between chapter and verse, and for salutations business letters and other formal letter writing, and often to separate hours and minutes. The most common use of the colon is to inform the reader that what follows the colon proves, explains, defines, describes, or lists elements of what preceded
Punctuation 1995. Various sets of characters are referred to as "punctuation" in certain computing situations, many of which are also used to punctuate natural languages. Sometimes non-punctuation in the natural language sense (such as "&" which is not punctuation but is an abbreviation for "and") are included. General Punctuation and Supplemental Punctuation are blocks of Unicode symbols. In regular expressions, the character class codice_1 is defined to consist of the following characters (when operating in ASCII mode): codice_2 Notes Further reading Punctuation Punctuation (formerly sometimes called pointing) is the use of spacing, conventional signs and certain typographical devices as aids to