Why do you say an hour when h is not a vowel?

You're right, "h" is not a vowel, but we say "an hour" because of a little linguistic quirk!

Here's the breakdown:

* Pronunciation: The "h" in "hour" is silent. It's pronounced like "ow-er", starting with a vowel sound.

* Grammar Rule: The use of "a" or "an" depends on the sound of the following word, not the actual letter. We use "an" before words that start with a vowel sound.

Think of it like this: It's not about the letter "h" but the way the word "hour" sounds when we say it.

There are many words that follow this rule, like "honor" (pronounced "on-er") and "honest" (pronounced "on-est"). We say "an honor" and "an honest man".

Let me know if you have any more grammar questions!