Em Dash: When Should I Use It

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Are you a professional writer who’s ever found yourself wondering when to use an em dash? You might have seen the punctuation mark in published pieces of writing, but could never quite identify when and how to properly employ it. If so, you’re not alone!

The em dash poses one of the trickiest linguistic conundrums for scorekeepers of grammar—one which I’m here to help simplify for you today. So let’s get started!

What is an Em Dash?

An em dash is a punctuation mark that is used to indicate a break in thought or to highlight a phrase within a sentence. Unlike other dashes, this punctuation mark is longer and can be used in place of commas, parentheses, or academic writing. While some writers choose to shy away from the em dash, many others embrace its versatility as a tool for creating emphasis and clarity in their prose.

When and How to Use the Em Dash Effectively

The em dash is a versatile punctuation mark that adds emphasis, clarity, and style to your writing. It’s often used to replace commas, parentheses, or colons, offering a more dramatic pause or drawing attention to key ideas.

  • For example, instead of writing, “The dessert—chocolate cake—was delicious,” you could use parentheses, but the em dash creates more emphasis.

Using the em dash correctly enhances your prose, but it’s essential to avoid common mistakes. Some of the errors are:

  1. Confusing it with a hyphen or en dash—shorter punctuation marks used for entirely different purposes. For instance, “pre-existing” needs a hyphen, not an em dash.
  2. Adding spaces before or after the em dash, such as “I forgot my wallet — and had to go back.” The correct format is “I forgot my wallet—and had to go back.”

The em dash can also indicate interruptions or sudden changes in thought, making it ideal for dialogue or creative writing.

  • For example, “I was just about to—oh, never mind!”

By using this punctuation mark thoughtfully, you can make your sentences flow naturally while grabbing your reader’s attention. Master the em dash, and your writing will feel both polished and engaging.

How to Properly Format an Em Dash 

If you want to add some emphasis or drama to your writing, using an em dash can be a great way to do it. However, if you don’t use them properly, they can easily become a distraction and make your writing look unprofessional. So, how do you use em dashes correctly?

  1. Understand that they are used to indicate a sudden break or interruption in thought.
  2. To properly format this punctuation mark, simply type two hyphens (–) with no spaces before or after, and your word processor will convert them into a longer dash.
  3. Note that there should be no spaces between this punctuation mark and the words it separates.

By paying attention to these details and using em dashes judiciously, you’ll be able to confidently add some extra oomph to your writing.

Common Mistakes to Avoid When Using Em Dashes

The em dash is a powerful punctuation mark, but misusing it can confuse readers or weaken your writing. Some of the most frequent errors are

  • Confusing the em dash with the hyphen or en dash. The em dash is the longest of the three, used for breaks in thought or emphasis, while the hyphen connects compound words like “well-known” and the en dash links ranges, such as “1990–2000.”
  • Adding spaces before or after the em dash, which creates a clunky appearance. For example, writing “She was excited — but nervous” is incorrect; it should be “She was excited—but nervous.” This rule ensures your text looks polished and professional.
  • Overusing this punctuation mark can also dilute its impact. While it’s a versatile tool, relying on it too much can make your writing feel inconsistent. Balance its usage with commas, parentheses, or colons to maintain variety and readability.
  • Ensure this punctuation mark serves a clear purpose. It should clarify or emphasize, not complicate your sentence. By avoiding these common pitfalls, you can confidently use the punctuation mark to enhance your writing and keep readers engaged.

Mastering these nuances ensures the em dash elevates your prose rather than detracting from it.

When to Avoid Using Em Dashes

While the em dash is a valuable punctuation mark, there are situations where it’s better to choose an alternative.

  • Overusing this punctuation mark can clutter your writing, making it feel disjointed or overly dramatic. For instance, “She loved hiking—but also swimming—and gardening—on the weekends” becomes cumbersome with too many dashes. In this case, commas provide better flow.
  • This punctuation mark should also be avoided in highly formal contexts, such as legal or scientific writing, where precision and uniformity are critical. Instead, opt for colons or semicolons to convey relationships between ideas. For example, write “The study revealed a significant trend: younger participants were more likely to agree.”
  • Avoid using this punctuation mark where clarity might suffer. For example, “The dessert—chocolate cake—was served” could confuse readers who might misinterpret the dashes as interruptions. Parentheses or commas are often better choices in such scenarios.
  • Ensure that this punctuation mark doesn’t replace stronger punctuation like periods. Breaking long sentences into shorter ones can improve readability and impact. By knowing when not to use it, you’ll ensure that this punctuation mark retains its power and effectiveness.

Striking the right balance will keep the em dash as a purposeful tool in your writing.

em dash

Conclusion

The Em Dash is a powerful punctuation mark that has been used in written communication for centuries. It can be used to clarify thoughts, introduce related ideas, and connect two independent clauses without the need of other conjunctions. It’s important to understand how this punctuation mark become an essential part of any writer’s toolkit. We hope this article gave you a better understanding of what it is and why it matters so much in crafting effective pieces of writing.

FAQs

What is an em dash?

This is a punctuation mark that looks like two short dashes side by side (—). It is used to set off nonessential elements in a sentence, such as extra information or an aside. It can also be used to connect two independent clauses without using other conjunctions.

When should I use an em dash?

This punctuation mark should be used when there is something particularly important you want to emphasize in the sentence, when you need to add additional information or make a clarification, or when you are connecting two independent clauses without using other conjunctions.

How do I properly format an em dash?

When typing this punctuation mark, it should not have any spaces before and after it; however, if you are writing it by hand, you should include a space on either side of the dash.

Can I use an em dash in place of parentheses or commas?

Yes, this can be used to emphasize something that may have been set off with parentheses or commas.

What are some examples of using an em dash correctly and incorrectly in writing?

Correct: Her sister—a talented artist—was always supportive.

Incorrect: Her sister — a talented artist was always supportive.

Correct: She had one goal—to finish her degree—and would not let anything stop her.

Incorrect: She had one goal — to finish her degree and would not let anything stop her.

As you can see, using the em dash correctly can help clarify your thoughts and make your writing stand out. It is important to understand how this punctuation mark works so that you can ensure your writing style is correct. Learning when and how to properly use this punctuation mark will give your writing a professional touch.

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