Whole and hole sound the same, but they mean very different things.
Whole means complete, entire, or all of something. You use it when nothing is missing or when you mean the full amount. For example, I read the whole book in one weekend.
Hole means an opening, gap, or hollow space. You use it for something empty or broken through. For example, There is a hole in the wall.
A simple way to remember it is this: if you mean all of something, choose whole. If you mean an opening or space, choose hole.
- She told me the whole story.
- The dog dug a hole in the yard.
Even though they are pronounced the same way, the meaning in the sentence makes the correct spelling clear.