- Whoa is the correct spelling.
- Woah is a misspelling. Woah is not a word.
Sometimes it’s easy to sound out the spelling of words, but other times it’s not so easy. For example, which is correct—whoa or woah?
Is It Whoa or Woah?
It’s whoa. This interjection means “stop.” You might use it as a command to stop a galloping horse. Or, if you are having a conversation, you might use it to encourage your partner to pause. You can even use it when something unexpected or amazing gives you pause. This last meaning probably gave rise to the slang expression “like whoa.” It means that something is excellent, amazing, or has a great deal of some particular quality. Let’s look at some examples.
How to Remember the Spelling of Whoa
How can you avoid the temptation to spell whoa with the H at the end? A simple trick to remember the spelling of whoa is to remember that it begins with the question word who. If you like rhymes, you can just memorize a phrase to remember which two letters are in the middle of whoa: Never say whoa to a horse named HO.
Is it easier to spell whoa now that you have a couple of handy tricks? You might want to tackle some other commonly misspelled words. For example, do you know the misspelling that keeps you from cake?
from Grammarly Blog https://www.grammarly.com/blog/whoa-woah/