Use long dashes in the following situations: Emphasize additional information in the middle or end of a sentence. Long dashes provide more emphasis than a comma or parentheses and can indicate a pause ...

Use a hyphen, not a slash, to illustrate joint entity or ownership (faculty-staff newsletter). Never use a hyphen in place of a colon or dash for emphasis or to denote a break or pause. Do not use a ...

On Nov. 5, 1939, as the Second World War was breaking out in Europe, Canadians first heard "the beginning of the long dash" which officially indicated the arrival of 1 p.m. eastern standard time.