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Hyphens, En Dashes and Em Dashes (Don’t Let Friends Dash Incorrectly)
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By Marvin Forte
Have you ever wondered why there are three types of dashes and been unsure of which one to use? The following is a basic guideline help you use the right dash, every time.
The Hackneyed Hyphen
A hyphen is the shortest dash and the most common of the three. The hyphen has a few specific uses.
- Hyphens are used to hyphenate or break a word into two lines of copy. This technique is useful in typography to justify columns of text.
- Hyphens are used to combine words and make a hyphenated compound word (she is detail-oriented). In this case, it signifies the relationship of detail and oriented. Detail is modifying oriented to create the distinct meaning of the compound.
- Hyphens are used to separate non-inclusive numbers like phone numbers or social security numbers.
How To: Press the dash key (Apple Macintosh or Microsoft Windows) to type a hyphen. The dash key is in-between the 0 and = keys on a standard keyboard. The HTML ASCII Character Code for a hyphen is -
The Enticing En Dash
The en dash is slightly wider than a hyphen and is usually the same width as the capital letter N, hence the name.
- En dashes are used to signify “through”. They’re primarily used to demonstrate a range between two numbers (1999–2008).
How To: Press the option and dash keys simultaneously (Apple Macintosh) or alt and 0150 on the keypad (Microsoft Windows) to type an en dash. The HTML ASCII Character Code for an en dash is –
The Masterful Em Dash
The em dash is the dash most people are talking about when they say “dash”. It’s wider than a hyphen or en dash and it’s typically the same width as a capital M, clever huh? Unenlightened typists will often type two hyphens to signify an em dash—don’t do it! Some word processing programs will automatically convert two consecutive hyphens into an em dash.
- Em dashes are used to strongly break a sentence. They can be used in pairs, to act like parentheses—separating a clause—or one can be used to separate one section of a sentence from another.
How To: Press the option, shift and dash keys simultaneously (Apple Macintosh) or alt and 0151 on the keypad (Microsoft Windows) to type an en dash. The HTML ASCII Character Code for an em dash is —
Save the Spaces for Other Places
You should never use a space before or after a hyphen, en dash or em dash except in the rare case of a hanging hyphen (he is detail- and career-oriented). Some will argue this point and insist on a space before and after an em dash. It’s not necessary.
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4 Responses to “Hyphens, En Dashes and Em Dashes (Don't Let Friends Dash Incorrectly)”
Hunnter said:
The only reason for placing spaces with dashes (mainly em dashes) is for easy reading IMO.
Having no spaces just doesn’t look right, and doesn’t sound right either, due to it actually intersecting the sentence with more information that may or may not be important. (I guess you could use no spaces for the former, and spaces for the latter)
There is also the "SHY hypen"
Or ­ for HTML.
Quite a bit of indecision over how it should be displayed.
I wrote some hotkeys in Autohotkey (Windows only AFAIK) to add easy access to the different forms of horizontal separators.
!send,{alt down}0150{alt up} ::send,{alt down}0151{alt up}
^
1st item is alt -, 2nd is ctrl –
Can’t place the shy hyphen sadly, it won’t paste.
Mazin said:
". To type an en dash, hit the Compose Key and then type "—." (note the period to distinguish it from an em dash). Compose Key sequences are mnemonic.
Fedde said:
Something seems to have gone wrong with Mazin’s post. The compose key sequence for the em dash is Compose followed by three hyphens (`Compose, , , `), and the sequence for the en dash is Compose followed by two hyphens and a full stop/period (`Compose, , -, .`).
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Categories: Typography, Web Development, Graphic Design, Grammar

Shari said:
Thanks for imparting your wisdom on the use of the different dashes (-, –, or — )! You learn something new everyday.
;-)
Tuesday, September 30, 2008 at 04:52PM