7. English Language Punctuation - En Dash The uses of the en dash are conventional: The en dash indicates inclusive or continuing numbers or dates: pp. 233--235 or Oct. 1975--Jan. 1976 The en dash is not appropriate in a from . . . to . . . or a between . . . and . . . construction: Wrong between 1975--1978 from 1975--1978 The en dash connects a unit modifier with a two-word or hyphenated element: New York--London flight shock-wave--boundary-layer interaction See section 16 for discussion of the slash (/) used in place of an en dash. The en dash is used in place of a hyphen in all capital text.