an interjection is always

is always a big name for a little word

An interruption of the conversation or article.

An interjection is a part of speech that expresses a sudden or strong feeling or reaction. It is usually a short, exclamatory word or phrase that is used to convey emotions such as surprise, joy, relief, or disgust. Some common examples of interjections include "wow," "oh," "ouch," "yay," and "uh-oh."

To identify whether a word or a phrase is an interjection, you can follow these steps:
1. Look for words or phrases that express sudden emotions or reactions. Interjections are often short, standalone expressions and do not typically have grammatical connections with the rest of the sentence.
2. Pay attention to punctuation. Interjections are usually followed by an exclamation mark or a comma when used mid-sentence.
3. Consider the context. Interjections are highly dependent on the speaker's tone and intention. They are meant to add emphasis or convey an immediate emotional response.

It's important to note that not all exclamatory words or phrases are interjections. Some may function as adverbs, adjectives, or even nouns in certain contexts. Understanding the surrounding sentence structure and the intended meaning of the word or phrase will help you determine if it is being used as an interjection or not.