Do you use a comma after the word fortunately?

Whether you use a comma after "fortunately" depends on the context.

Here's a breakdown:

* If "fortunately" introduces a dependent clause: Yes, you use a comma.

* Example: "Fortunately, I had an umbrella, so I didn't get wet."

* If "fortunately" is used as an interjection: Yes, you use a comma.

* Example: "Fortunately, the storm passed quickly."

* If "fortunately" modifies a noun or pronoun: No comma needed.

* Example: "We had a fortunately uneventful journey."

In general, if "fortunately" introduces a new thought or idea, use a comma. If it's directly modifying a word, you don't need one.