যে শব্দ দ্বারা মনের আকস্মিক অনুভূতি যেমন আনন্দ, বিস্ময়, দুঃখ, প্রভৃতি প্রকাশ করে তাকে Interjection বলে। 

যেমন: Alas!, Hurray!, Wow!, Hey!, Yippee! ইত্যাদি।

Primary interjections

A primary interjection is a word or sound that can only be used as an interjection. Primary interjections do not have alternative meanings and can’t function as another part of speech (i.e., noun, verb, or adjective).

Primary interjections are typically just sounds without a clear etymology. As such, while they sometimes have standard spellings, a single interjection may be written in different ways (e.g., “um-hum” or “mm-hmm”).

Examples: 

Ugh! That’s disgusting.

Um-hum. I think that could work.

We won the game. Yippee!

Secondary interjections

A secondary interjection is a word that is typically used as another part of speech (such as a noun, verb, or adjective) that can also be used as an interjection.

Examples: 

Goodness! That was a close one.

Shoot! My flight has been canceled.

Awesome! Do that trick again.

Mild interjections

These are interjections that express relatively less strong emotions or just function as introductory expressions without being associated with any emotions.

Examples:

Well, I guess I've to go now.

Oh, I didn't know you were a doctor.

Strong interjections

These are interjections that express solid and strong emotions.

Example:

Alas! Maria's aunt has passed away!

Volitive interjections

A volitive interjection is used to give a command or make a request. For example, the volitive interjection “shh” or “shush” is used to command someone to be quiet.

Examples:

Shh! I can’t focus when you’re singing.

Psst . Pass me an eraser.

Ahem. Please pay attention.

Emotive interjections

An emotive interjection is used to express an emotion or to indicate a reaction to something. For example, the emotive interjection “ew” is used to express disgust.

Curse words, also called expletives, are commonly used (in informal contexts) as emotive interjections to express frustration or anger.

Examples: 

Ew. I’m not eating that.

Yay! I’m so excited to see you.

Yum! This apple pie is delicious.

Cognitive interjections

A cognitive interjection is used to express a thought or indicate a thought process. For example, the cognitive interjection “um” can express confusion or indicate that the speaker is thinking.

Examples: Cognitive interjections in a sentence

Um, can you explain it once more?

Wow! I wasn’t expecting that.

Eureka! I’ve solved the puzzle.