Noun
en dash (plural en dashes)
(typography) The punctuation mark –, which is used, for instance, to indicate a range.
en-dash
Alternative spelling of en dash
en-dash
In the ISO 8601 system, slashes represent date ranges: "1939/1945" represents what is more commonly written with an en dash as "1935–1945" or with a hyphen as "1935-1945". Source: Internet
It can also be used to indicate a range of values, although many styles prefer an en dash (see examples at Dash > En dash > Ranges of values ). Source: Internet