Interjections

In English we have a number of words that are used to express strong feeling or sudden emotion. Words that serve this purpose are called interjections. Interjections have no grammatical relation to any word or group of words. The interjections in the examples ate in italics.

Alas! This is the end!
Bah! I can't believe that.
Pshaw! Why did I do that?

The words classified as interjections in the preceding illustration are always interjections. In addition to such words, nouns, pronouns, adjectives, and other parts of speech are often used as interjections.

Heavens! I cut my finger.
Good! I'm glad to hear you.
Well! When are you going?
Horrors! Look at that hat!