Interjection — Definition and Examples

What is an interjection?
An interjection is a part of speech that indicates a short expression of sudden strong emotions, moods, or feelings. There are three types of interjections: cognitive, emotive, and volitive.
Cognitive: Cognitive interjections are used in an exclamatory way and typically convey feelings individuals have through their understanding of an experience.
- Examples: Aha, bingo, gosh, huh, and oh 
Emotive: Emotive interjections express emotions, such as surprise, delight, sorrow, disgust, and fear.
- Examples: Ah, yikes, blah, yuck, and ugh 

Volitive: Volitive interjections consist of commands, requests, and wishes.
- Examples: Ahem, hey, psst, and shh 
Interjection grammar
When using interjections, the following English grammar rules apply:
Rule 1: Standalone
Interjections can work as standalone sentences.
Rule 2: Placement
Writers typically include interjections at either the beginning or the end of a sentence. However, it is grammatically correct to place them in many parts of the sentence.
Rule 3: Punctuation
When an interjection forms a standalone sentence, follow it with a period, question mark, or exclamation point.

Follow interjections at the beginning of a sentence with a comma or hyphen.
Surround interjections in the middle of a sentence with commas or hyphens.
Precede interjections at the end of a sentence with a comma or hyphen.
Rule 4: Informal vs. Formal Writing
Avoid interjections in academic and professional writing.
Interjection examples
The following chart contains the most common examples of interjections broken down into seven emotional categories:
| Category | Interjections | 
|---|---|
| Approval | bravo, brilliant, great work, splendid, well done | 
| Attentions | ahem, hey, hush, look, listen, psst, shh | 
| Doubt/Hesitation | hmm, err, uh, um | 
| Greetings/Departures | bye, goodbye, hello, hey, hi, see ya | 
| Joy | good, great, wow, woohoo, yes, yay | 
| Sorrow/Grief/Pain | ah, aww, oops, ow, ouch | 
| Surprise | ah, ha, oh, what, wow, gee, phew | 
The following sentences incorporate the use of interjections:
Approval: Positively agreeing to something that has happened
- You tested at the top of the class. Well done! 
- Bravo! Job well done! 
- You broke the school record. Great work! 
Attention: Drawing attention to someone or something
- Ahem! Can I have your attention, please? 
- Shh! Please be quiet in the library. 
- Psst, do you know the answer to number three? 
Doubt/Hesitation: Conveying uncertainty
- Um, I'm sorry, but I don't think I know the answer to that. 
- Does he remember, uh, who I am? 
- Hmm, are you sure it was him? 

Greetings/Departures: Welcoming someone or bidding them farewell
- Hey! It's great to see you! 
- Hello, my name is Grace. 
- It was great to meet you. Bye! 
Joy: Feeling of immediate happiness
- Wow! That movie was amazing! 
- Great! Now we can head to the beach. 
- Yahoo! I was accepted into MIT! 
Sorrow/Grief/Pain: Communicating sadness about something unfortunate
- Ouch! I think I was just stung by a jellyfish. 
- Oh! That movie was incredibly sad. 
- Aww, I can't believe their dog ran away. 
Surprise: Expressing a strong sense of amazement
- What! We're going to Disney World? 
- Wow! I never thought I'd win the lottery. 
- Oh! I really wasn’t expecting that.