Interjections
An interjection is a word or short phrase that expresses sudden emotion, reaction or feeling, such as surprise, joy, pain or hesitation. It stands apart from the main sentence grammatically, usually needs no verb or subject, and is often followed by an exclamation mark or comma, for example "Wow!", "Ouch!" and "Well,".
Types of interjections
Primary interjections
Words that exist only to express emotion and have no other grammatical function.
e.g. Wow!, Ouch!, Ah!
Secondary interjections
Words from other parts of speech (nouns, adjectives, verbs) that are used as exclamations.
e.g. Great!, Nonsense!, Look out!
Volitive interjections
Short words used to give a command, request silence or attract attention.
e.g. Shh!, Hey!, Attention!
Emotive interjections
Words that show a speaker's feelings such as pain, disgust or relief.
e.g. Ouch!, Yuck!, Phew!
Cognitive interjections
Words that show thought, hesitation or realisation rather than strong emotion.
e.g. Hmm., Well., Oh, I see.
Rules to remember
- Interjections are grammatically independent; they do not connect to the rest of the sentence with a verb or conjunction.
- Use an exclamation mark after a strong interjection, and a comma after a milder one.
- Interjections can stand alone as a one-word sentence or appear at the start of a longer sentence.
- Capitalise the first letter of an interjection when it begins a sentence, just like any other sentence-initial word.
- Choose the interjection to match the tone and formality of the context; save strong exclamations like 'Wow!' for informal speech, not academic writing.
Examples in sentences
| Example | How it works |
|---|---|
| Wow! That view is incredible. | A strong primary interjection expresses amazement, followed by an exclamation mark. |
| Ouch! I just stubbed my toe. | An emotive interjection reacts to physical pain. |
| Well, I suppose we could try again tomorrow. | A mild cognitive interjection is followed by a comma, showing hesitation. |
| Shh! The baby is sleeping. | A volitive interjection is used to request quiet. |
| Oh, I didn't realise you were still here. | The interjection 'Oh' signals sudden realisation before the main clause. |
| Hooray! Our team won the match. | A secondary interjection formed from an exclamation of joy. |
| Ugh, this traffic is unbearable. | An informal interjection expresses frustration before the complaint is stated. |
Common mistakes
Incorrect: Wow, that is amazing, I can not believe it its so good.
Correct: Wow! That is amazing. I can't believe it's so good.
Incorrect: Oh no I forgot my passport
Correct: Oh no, I forgot my passport!
Incorrect: Using strong interjections like 'Wow!' or 'OMG!' in a formal IELTS essay.
Correct: Avoid interjections in formal writing; use phrases such as 'It is striking that...' instead.
Why this matters for IELTS
In IELTS Speaking, natural interjections such as "Well," "Oh," or "Hmm," used sparingly can make your answers sound more fluent and spontaneous, supporting a higher score for coherence and natural expression. However, in IELTS Writing, interjections are almost always too informal; examiners expect formal register for Grammatical Range and Accuracy, so replace exclamatory words with formal discourse markers or descriptive phrases instead.
Frequently asked questions
What is an interjection in simple terms?
It is a short word or phrase that shows sudden feeling, like surprise, pain or joy, and stands apart from the rest of the sentence grammatically.
Is 'okay' an interjection?
Yes, when used alone to show agreement or acknowledgement, such as 'Okay, let's go,' it functions as a secondary interjection.
Should interjections be used in academic writing?
No, interjections are informal and are generally avoided in academic or formal writing, including IELTS Writing Task 1 and Task 2.
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