Interjection: Definition, Types and 100 Examples

An interjection is a word or short phrase that expresses a sudden feeling and takes no grammatical role in the sentence around it. Wow, ouch and hello all qualify. Delete one from a sentence and the sentence still works, which separates it from every other part of speech. That independence also governs how you punctuate it.

What Is An Interjection

An interjection is a word or short phrase that expresses a sudden feeling or reaction and forms no grammatical link with the words around it. The name derives from the Latin interjicere, to throw between, which describes exactly where the word goes: thrown in between thoughts rather than built into one.

Two properties make the class testable, and each one gives you a check to run on any sentence.

The first is independence. Remove the word and the rest of the sentence stays untouched.

• Ouch! That hurts. Take ouch away and that hurts still works as a full sentence, with the same meaning and the same grammar. No other part of speech behaves that way, since removing a verb or a subject breaks the clause.

The second is that the class takes no inflection. It forms no plural, no past tense and no comparative. English gives you ouches, ouched and ouchest nowhere, because the word reports a reaction rather than naming a thing, an action or a quality.

Types Of Interjections

You classify an interjection twice. The first classification asks what the word is by origin, which gives you the primary and secondary classes. The second asks what the word does in the moment, which gives you emotive, volitive, cognitive and phatic. Every word in the class takes one label from each set, so shh is primary by origin and volitive by function at the same time.

Primary And Secondary Interjections

A primary interjection does this job and no other. Ouch, psst, yikes, oops and ugh belong here. None of them names a person, an action or a quality, and none appears anywhere else in the grammar.

A secondary interjection borrows a word from another part of speech. Goodness is a noun, shoot is a verb, awesome is an adjective, and each turns into one the moment a speaker throws it out alone to react.

The test is whether the word survives outside the reaction. Goodness still works in she showed real goodness, so it is secondary. Psst works in no other sentence in English, so it is primary.

Emotive Interjections

An emotive interjection reports what the speaker feels. Ew reports disgust, yay reports delight, alas reports regret and ouch reports pain. Nothing is asked of the listener, since the word only shows the speaker’s state.

Ew! I am not eating that.

Volitive Interjections

A volitive interjection asks the listener for something. Shh asks for silence, psst asks for attention, ahem asks someone to notice you and hush asks a child to settle.

This is where learners misfile words, so watch the verb. Be quiet! and Stop talking! do the same job as shh, but each one is a full command with its own verb, which makes it an imperative clause instead. Shh has no verb at all, and that absence is what keeps it inside the word class.

Cognitive Interjections

A cognitive interjection reports thinking rather than feeling. Aha marks the moment a speaker understands, hmm marks doubt, um marks the pause while a speaker searches for a word, and eureka announces a solution.

Speech takes these far more than writing does. Write um and er into dialogue and they sound real; write them into an essay and they read as a mistake.

Phatic Interjections

A phatic interjection manages the contact between two speakers instead of reporting a state. Hello opens contact, bye closes it, uh-huh signals that you are still listening, and with thanks a speaker acknowledges what someone did.

These attach to no clause exactly as ouch does, which is why they take the same label. Some grammarians argue that greetings answer a social convention rather than a feeling, so they treat them as a separate class. For a learner the practical result is identical: they attach to no clause and they follow the same punctuation rules.

List Of Interjections With Meanings

One interjection rarely fits two emotions, so choosing the wrong one changes your message. Yikes reports alarm and yuck reports disgust, and swapping the two makes a speaker sound confused. Each word is given with the feeling it reports and a sentence showing that feeling in context.

In the Corpus of Global Web-Based English, the most frequently tagged interjections are yes, no, oh, yeah, hi, hey, wow, hello, ah and hmm. The everyday ones outrank the dramatic ones by a wide margin in real English.

For More Interjections: List Of Interjections

Joy and celebration: these words follow a win or good news.

Surprise and amazement: these words react to something unexpected.

Approval and praise: these words back what someone has just done.

Sorrow and regret: these words mark loss or disappointment.

Pain: these words report physical hurt.

Fear and alarm: these words react to danger or a fright.

Disgust: these words reject something unpleasant.

Relief: these words come after a scare or a long wait.

Greeting and parting: these words open and close contact between speakers.

Attention and command: these words act on the listener rather than report a feeling.

Agreement and refusal: these words answer without a full sentence.

Thinking and hesitation: these words report a mind at work.

Mistakes and frustration: these words follow a slip or a setback.

Doubt and dismissal: these words reject an idea or refuse to take it seriously.

Interjection Examples In Sentences

Reading one inside a full sentence shows both its type and its punctuation at once. Each example names the class of the word.

• Yippee! We are going to the coast. Yippee is a primary interjection by origin, since the word does no other job in English, and an emotive one by function, since it reports delight.
• Shoot! My flight has been cancelled. Shoot is a secondary interjection, because the same word works as a verb in shoot the ball. Here it reports frustration instead.
• Psst, the answer is on the second page. Psst is volitive, since it asks the listener to do something, in this case to lean in and listen.
• Hmm, that price looks wrong to me. Hmm is cognitive, because it reports the speaker’s doubt rather than an emotion or a request.
• Bye! Give my love to your mother. Bye is phatic, since it closes the contact between two speakers instead of reporting a feeling.

Notice that in every one of these sentences you delete the first word and the rest still works on its own. That is the property that defines the whole word class, and it is what your teacher tests when they ask you to find the interjection.

How To Punctuate Interjections

Four punctuation marks follow this word class, and you choose between them by the strength of the feeling.

The mark you choose then determines the capital letter, and this is where most written mistakes appear. An exclamation mark, a question mark or a full stop closes it, so the next word begins a new sentence and takes a capital.

• Wow! that view is unreal. ❌ The exclamation mark has already ended one sentence, so that starts a new one and needs a capital T.
• Wow! That view is unreal. ✅ Both parts now read as complete sentences, which matches how you would say them aloud.

A comma works the opposite way, because it keeps the word inside the sentence that follows.

• Well, We can try again tomorrow. ❌ The comma has joined the two parts into one sentence, so we stays lowercase.
• Well, we can try again tomorrow. ✅ One sentence, one capital letter at the start, and the comma marks the small pause after well.

One caution remains on exclamation marks. Two or three in a row (Wow!!!) work in a message to a friend and in nothing else. Formal writing allows one, and a text full of them weakens every one in it.

Where Interjections Go In A Sentence

This word class takes four positions, and each position changes the punctuation around it rather than the meaning of the word.

At the start: the word sets the feeling before the sentence itself, and this is the position you will meet most.

• Phew! We made the train with a minute to spare.

In the middle: the word interrupts the thought, and a comma on each side marks the break.

• The cake was, ugh, far too sweet for me.

At the end: the word closes the sentence and adds the reaction after the fact.

• We finished the whole project on time, finally!

Alone: the word forms a complete utterance with no clause attached at all.

• Ouch!

That last position explains why interjections are called grammatically independent. A noun or a verb standing alone leaves a sentence unfinished, while one of these on its own is finished already.

How To Identify An Interjection

Three tests separate this class from every word it resembles. Run them in order on any word you are unsure about.

1. Delete the word and read the sentence again: if what remains still works as a full sentence with the same meaning, the deleted word is an interjection. In Alas, the shop had closed, deleting alas leaves the shop had closed, which works perfectly well. Delete the verb instead and the sentence stops working, which is the difference.
2. Try to change its form: the class accepts no plural, no tense and no comparison. Oops gives you no oopsed and no oopser, while a genuine verb or adjective in the same position changes shape without trouble.
3. Look for a verb inside the word group: a word group with its own verb is a clause, not an interjection. Shh is an interjection and Be quiet! is an imperative clause, even though the two do the same job in conversation. This one catches out more learners than the other two together.

The tests work on secondary interjections as well. In Goodness! The queue is enormous, goodness passes all three: the sentence survives without it, the word takes no interjection-specific ending here, and no verb comes with it. In She showed real goodness, the same word fails test one, because deleting it breaks the sentence. The word class depends on the job the word does in that sentence, not on the word itself.

Interjections In Formal And Informal Writing

Interjections start in speech, and every written setting that copies speech takes them naturally. Text messages, casual email, dialogue in fiction, comics, personal essays, blogs and advertising all accept them without trouble.

Formal writing rules them out. An academic essay, a business report, a research paper, a legal document and an exam answer take none of them, because each one asks you to argue rather than to react. Writing Wow, the results were unexpected in a lab report costs you marks that the results were unexpected would have kept.

One exception applies in every formal setting: quoted speech. Reporting what someone said keeps their words intact, interjections and all, since the reaction is the speaker’s rather than yours.

• The witness told the court, “Oh no, the car never stopped.”

Two mild ones are accepted in formal speech, and well and indeed are the ones. Both appear in interviews, presentations and formal conversation without sounding out of place, which is why examiners treat them differently from yikes and ugh.

Interjections Vs Exclamations

An interjection is a single word or a short phrase, while an exclamation is a full sentence spoken with force. Wow! is an interjection. What a beautiful house this is! is an exclamation, because it carries a subject and a verb inside a complete clause.

The exclamation mark causes the confusion, since both take one. Look past the mark and count the parts instead. If the words form a clause with a subject and a verb, you have an exclamation; if they form neither, you have an interjection.

• Ouch! is an interjection, since it is one word with no clause behind it.
• That really hurt my foot! is an exclamation, since it is a full clause spoken with force.

A sentence carries both at once, as in Ouch! That really hurt my foot!, which is one interjection followed by one exclamation.

Interjections Vs Onomatopoeia

This word class reports a state inside the speaker, while onomatopoeia imitates a sound in the world outside. Ouch reports the speaker’s pain, and thud names the sound the falling book made. Neither word attaches to a clause, which is why the two get mixed up.

The question to ask is whose reaction the word registers. Alas registers the speaker’s regret and names nothing audible, so it is an interjection. Boom, meow, buzz and crash record a noise that anyone in the room would hear, so they are onomatopoeic.

A few words work as both, and aargh is the plainest case. Written into a comic beside a falling character it imitates a scream, and spoken by a frustrated reader it reports feeling instead. The label follows from the job the word does in that sentence, exactly as it does with secondary interjections.

If you want to see how the same word-class logic works elsewhere in the grammar, the types of adverbs follow a similar split between form and function.

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