Em Dash
Rules and Examples
The
hyphen,
the
en
dash, and the em dash are the three forms of dashes and lines
used in the English language.
Click Here for Step-by-Step Rules, Stories and Exercises to Practice All English Tenses
Let's begin by quickly reviewing the hyphen and en dash.
Hyphen ( - )
The
hyphen
is the shortest of the three forms of dashes and lines. It is
made by pressing the
hyphen/underscore
key to the right of the
zero.
A hyphen ( - ) is used in compound words and split words.
Examples:
- ninety-nine
- mother-in-law
- great-looking woman
- vice-president
- mid-October
En Dash ( – )
The
en
dash is about the same width as the letter "N".
The en dash can be made in Microsoft Word by pressing the
CTRL key +
the
minus sign -, located on the keypad.
Another way to form the en dash is to hold down the
ALT key while
typing
0150
on the keypad.
There are 4 uses for the en dash:
- show a range of number
There will be 15–25 kids at the game.
- show a period of time
The meetings will be held October 11–October 15, 2012.
- show distance
The flight from Africa–America is long.
- game scores
The team won the game 15–10.
Em Dash ( — )
The em dash is the longest of the three dashes and lines in the English
language.
The em dash is about the same width as the letter "M".
On the keyboard
- The em dash is made on most PCs by holding down the ALT key while
typing 0151
on the keypad ( — ).
- The em dash can be made in Microsoft Word
by pressing CTRL
+ ALT +
the minus sign -, located on the keypad.
- On a Mac
computer, the em dash is made by pressing ALT + SHIFT + the
hyphen key,
located to the right of the zero.
Using an em dash
We use the em dash in sentences to
create a
strong break to show an
interruption, a change of thought, or to show emphasis. The em dash can
be used in place of some
commas,
parentheses,
colons, and
semicolons.
Notes:
- The em dash is mostly used in informal writing
such as friendly
letters, emails, and journals.
- Do not
overuse the em dash in formal writing, such as business
letters,
research papers, and articles.
- A good rule is to use parentheses,
commas, semicolons, and colons instead of em dashes in formal writing.
- There should be no spaces before or after an em dash.
Rules:
1. Use em dashes in place of commas
or parentheses
to create a break in
a sentence
Examples:
- Please call my lawyer—Richard Smith—on Tuesday.
This sentence could also be written with commas or parentheses.
Please call my lawyer, Richard Smith, on Tuesday.
Please call my lawyer (Richard Smith) on Tuesday.
- I talked to Mr. Johnson—my son's math teacher—at the game
on Friday.
This sentence could also be written with commas or parentheses.
I talked to Mr. Johnson, my son's math teacher, at the game on Friday.
I talked to Mr. Johnson (my son's math teacher) at the game on Friday.
2. Use an em dash like a colon
or semicolon
to create emphasis
A) In place of a colon:
- Mom needs four things at the store—butter, milk, flour, and
bread.
This sentence would be written with a colon in formal writing.
Mom needs four things at the store: butter, milk, flour, and bread.
- The house rule is simple—clean up after yourself!
This sentence would be written with a colon in formal writing.
The house rule is simple: clean up after yourself!
B) In place of a
semicolon:
- My sister loves chocolate—my brother loves vanilla
This sentence would be written with a semicolon in formal writing.
My sister loves chocolate; my brother loves vanilla.
- Tim got an "A" on his spelling test—therefore, he gets a
longer recess.
This sentence would be written with a semicolon in formal writing.
Tim got an "A" on his
spelling test; therefore, he gets a longer recess.
3. Use an em dash to show a sudden change of thought
Examples:
- I was going to buy a—what did you say she wanted for her
birthday?
- Mom needs to talk to you about—oh, please excuse me! I did
not know you
had company.
- I had a great day at the
zoo—hey! Is that a jaguar?
These were the uses of the em dash. Now that you know them, it is
time to practice!
Read and do
exercises.
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