Can you use an exclamation mark after the word good?

It's generally considered incorrect to use an exclamation mark after the word "good" on its own.

Here's why:

* "Good" is an adjective, not an interjection. An exclamation mark is used to emphasize interjections (words expressing strong emotions), like "Wow!" or "Oh no!"

* "Good" usually requires context. You might say "Good job!" or "Good luck!" But "Good!" by itself doesn't convey a clear meaning.

If you want to express excitement or emphasis, you can use other options:

* "Great!"

* "Wonderful!"

* "Fantastic!"

* "Excellent!"

Let me know if you'd like more examples!