'interjection' refers to a word or phrase that expresses strong emotion or sudden exclamation. Interjections are typically standalone expressions that convey feelings, reactions, or commands. They are often, but not always, followed by an exclamation point.
Interjections don't have a grammatical connection to the rest of the sentence; they stand apart from the main structure. They can express a wide range of emotions, from surprise and joy to disgust and sorrow.
Wow! That's an amazing performance.
Oops, I dropped the glass.
Hurray! We won the match.
While many interjections are followed by exclamation points due to their exclamatory nature, some can be followed by a comma, especially if they're less emphatic.
Interjections are versatile. Some can be drawn out for emphasis (e.g., 'Nooooo!' vs. 'No!'). Some interjections, like 'oh' and 'well,' can be used in more reflective or thoughtful contexts and might not always express strong or sudden emotion.