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
Mark (name) century, when it began to be used alongside the classical form Marcus. In the Celtic legend of Tristan and Isolde this was the name of a king of Cornwall. It was also borne by the American author Mark Twain (1835–1910), real name Samuel Clemens, the author of 'Tom Sawyer' and 'Huckleberry Finn'. He actually took his pen name from a call used by riverboat workers on the Mississippi River to indicate a depth of two fathoms. This is also the usual English spelling of the name of the 1st-century BC Roman triumvir Marcus Antonius (Mark Antony). Mark (name) Mark is