Whoa vs. Woah — Which is Correct Spelling?

Used as a command to stop, as to a horse.

Used to express surprise, amazement, or great pleasure.

Stop (especially when commanding a horse or imitative thereof); calm down; slow down.

Used as a meaningless filler in song lyrics.

(transitive) To attempt to slow (an animal) by crying "whoa".

Stop; stand; hold. See Ho, 2.