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Grammar

What Are Interjections in Writing?

An interjection is a word or phrase used as a short exclamation grammatically independent from the words around it. Interjections express emotion, understanding, or commands.

Interjections can add emphasis to a strong emotion and make a sentence stand out.

The best type of interjection (and punctuation) to use with it depends on the context of the sentence.

Learn best practices for writing with interjections, including the types of interjections, and how to punctuate interjections. 

Then, review your content with the Originality.ai Grammar Checker to avoid common grammar, spelling, and punctuation errors.

What Are Interjections?

Interjections are words or phrases that are short exclamations. Grammatically, they don’t impact the words or sentences around them, as they typically have their own punctuation or stand alone. 

In writing, interjections express sudden emotions, reactions, or commands. 

They might be at the start or end of an expressed thought or interject right in the middle.

How to use interjections in a sentence (examples):

  • Wow! Your house looks great.
  • Your house looks great. Wow!
  • Your house, wow, looks great.
  • Your house—wow!—looks great. 
  • Yes! Count me in.
  • Surprise! I’m here two days early.
  • Wait, what? Your room isn’t ready.

The interjection can be removed from any of these examples without altering the meaning of the remaining sentences. 

They’re just extra pops of emotion that add liveliness, excitement, or urgency to the words around them.

Types of Interjections in Writing

Some interjections are just that quick pop of excitement, like “Wow!” Others express agreement to an idea or reaction to something. There are names for these different types of interactions.

Primary vs. secondary interjections: how to tell the difference

The reasoning behind whether an interjection is described as primary or secondary is based on the particular word used. 

Let’s take a closer look.

Primary interjections

The meaning of a primary interjection is a word or a sound with the main purpose of interjecting. They don’t have other uses in grammar. 

How to use primary interjections in a sentence (examples):

  • Wow! You are a superstar.
  • Yuck! That is gross.
  • Ow! That really hurt.
  • I cannot believe them. Ugh!

Secondary interjections

Words that can interject and also have other grammatical uses are secondary interjections

They function as different parts of speech (noun, verb, adjective) in addition to their use as an interjection.

How to use secondary interjections in a sentence (examples):

  • Help! I think I sprained my ankle. (“Help” is verb + interjection)
  • Unbelievable! You passed the test. (“Unbelievable” is adjective + interjection)
  • My goodness! You are so tall. (“My” “goodness” possessive pronoun + noun + interjection)

There are also a few types of interjections that are named based on what they do.

Emotive interjections

Emotive interjects do what their name implies: they interject an emotion or emotional reaction

  • Oh! Isn’t she the cutest thing?
  • Wow! That cake is huge.
  • Aww! What a sweet gift.
  • Oh no! I am going to be so late for the meeting. 

Cognitive interjections

A cognitive interjection refers to what a person is thinking or their thoughts.

  • Yes! I completely agree with you.
  • I get it! You explained it perfectly.
  • Oh, sure! That makes sense.
  • No! They are way off on that one.

Volitive interjections

The word “volitive” means relating to the will (such as the will to do something). In grammar, this relates to expressing a wish, command, or demand. 

Volitive interjections are used to express a request or demand.

  • Move! We’re going to be late.
  • Shh! This is a quiet zone.
  • Hey! Put away those shoes, please.
  • It’s your 50th birthday. My goodness!

How to Punctuate Interjections in Sentences

In writing, interjections often appear before or after sentences, but they can also be put in the middle of a sentence. Punctuation is important with interjections and depends on where they are placed. 

Exclamation points

Because an interjection often expresses a sudden emotion or reaction, it commonly appears with an exclamation point (!). This is when the interjection appears on its own and is related to the sentence before or after

  • Oh no! That is my last bag of coffee.
  • You did great. Bravo!

Commas

When an interjection is part of a sentence, use a comma to separate it from the other words.

  • Oh no, that is my last bag of coffee.
  • You did great, bravo!

If the interjection is in the middle of a sentence, set it off with a comma on either side:

  • That recipe, wow, was so amazing!
  • That bag of coffee, oh no, is my last!

Em Dashes

An em dash (—) can also separate an interjection from the other words in a sentence. The word after the em dash is not capitalized, and any exclamation mark used goes at the end of the sentence. 

  • Oh no—that is my last bag of coffee!
  • Wow—that recipe was amazing!

If using em dashes with an interjection in the middle of a sentence, the exclamation point can be used inside the em dashes:

  • That recipe—wow!—was amazing.

Final Thoughts: Use Interjections Sparsely in Writing

Interjections add emphasis to writing with their quick, poppy burst of emotion. 

When used in moderation, they can be very effective. As with any type of emphasis, when used too often, it can be distracting (think ALL CAPS in email messages.) 

So, use interjections when they add just the right pop of expression, but be mindful of how often you are using them to ensure you are striking the right balance. 

Not sure if you are using interjections properly or adding the correct punctuation? Review your writing with the Originality.ai Grammar Checker to find out!

Then, get more insight in our grammar guides:

Melissa Fanella

Melissa Fanella is a writer, editor, and marketing professional with over 15 years of experience in content and messaging for businesses and nonprofits. Her expertise is in crafting authentic, people-first content that is compelling and engaging for audiences and positioned for business goals.

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