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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
em dash
Grammar usage guide and real-world examplesUSAGE SUMMARY
The part of a sentence 'em dash' is correct and usable in written English.
You can use it to add emphasis to a point or to replace commas, parentheses, or colons to indicate an interruption in a sentence. For example: "I am determined to reach my goals—no matter what it takes"—emphasizes the speaker's commitment to their goal.
✓ Grammatically correct
News & Media
Academia
Wiki
Science
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
48 human-written examples
And the glory of that em dash.
News & Media
Watch: Mary Norris explains the difference between a hyphen, an en dash, and an em dash.
News & Media
Comma Queen Mary Norris clarifies the difference between the hyphen, the en dash, and the em dash.
News & Media
Mad Dash Comma Queen Mary Norris clarifies the difference between the hyphen, the en dash, and the em dash.
News & Media
Watch: Comma Queen Mary Norris clarifies the difference between the hyphen, the en dash, and the em dash.
News & Media
The em dash is the mad one, versatile enough to act as comma, semicolon, colon, or hybrid of all three, as well as to indicate an interruption.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
12 human-written examples
The biggest are "em" dashes and are used to set off explanatory phrases like, "My friends -- that is, my former friends -- ganged up on me".
News & Media
All single quote forms (single curly quotes, single guillemets) are normalized to '; all double quote forms (double curly quotes, double guillemets) are normalized to ". Em dashes and en dashes are both normalized to --.
Academia
Open image in new window Fig. 3 a Efficiency comparison between LDSTM (solid lines) and EM (dashed lines) in recovering source temporal information.
Science
Em dashes signify a break in sentence flow.
News & Media
Book editing uses no spaces around its em dashes, but news editing usually opts for a space on either side.
News & Media
Expert writing Tips
Best practice
Use the "em dash" sparingly to avoid disrupting the flow of your writing. It's most effective when used for dramatic pauses or to set off parenthetical information that deserves emphasis.
Common error
Avoid using a hyphen (-) or an en dash (–) in place of an "em dash" (—). The "em dash" is longer and serves a distinct purpose in separating phrases or adding emphasis. Hyphens connect words, while en dashes indicate ranges.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "em dash" primarily functions as a noun, specifically referring to a type of punctuation mark. As Ludwig AI confirms, it is correct and usable in written English. It names the symbol itself and is used when discussing or referring to this specific punctuation mark.
Frequent in
News & Media
40%
Academia
25%
Wiki
15%
Less common in
Science
10%
Formal & Business
5%
Reference
5%
Ludwig's WRAP-UP
The phrase "em dash" correctly identifies a punctuation mark used to create emphasis, indicate a break in thought, or set off parenthetical information. Ludwig AI confirms its grammatical correctness, while Ludwig examples demonstrate its prevalence across various sources, especially News & Media and Academia. Although it is common, it's important to distinguish the "em dash" from hyphens and en dashes, using it judiciously to enhance rather than disrupt the flow of writing. As the examples show, mastering the "em dash" can add nuance and sophistication to your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
long dash
Refers to the same punctuation mark, emphasizing its length.
dash punctuation
Broader term encompassing various uses of dashes in punctuation.
sentence interrupter
Highlights the function of an em dash to interrupt the flow of a sentence.
punctuation mark for emphasis
Focuses on the em dash's role in adding emphasis.
parenthetical dash
Describes the em dash when used similarly to parentheses.
long hyphen
A less formal way to describe an em dash, highlighting its visual appearance.
break in thought indicator
Emphasizes the function of the em dash to signal a change in thought.
extended dash
Stresses the length of the dash compared to other punctuation.
grammatical dash
A formal term for a dash used in accordance with grammar rules.
punctuation for digression
Highlights the use of the em dash to introduce a digression.
FAQs
How do I create an "em dash" on my computer?
On Windows, hold down ALT and type 0151 on the numeric keypad. On a Mac, press Option + Shift + Hyphen. Some word processors automatically convert two hyphens (--) into an "em dash".
When should I use an "em dash" instead of parentheses?
Use an "em dash" to set off information that you want to emphasize more than if it were enclosed in parentheses. Parentheses de-emphasize, while the "em dash" highlights.
Is it correct to put spaces around an "em dash"?
Style guides vary. Some, like the Chicago Manual of Style, recommend no spaces around the "em dash". Others, like AP style, prefer spaces. Choose a style and be consistent.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested