Woah is an exclamation used to express astonishment, surprise, or emphasis, often drawn out melodically in casual speech. It can function as a noun in informal contexts when referring to a moment of awe or a remarkable event, though more commonly it’s an interjection. The term’s spelling reflects its vocalic capture of a prolonged, rounded vowel sound enhanced by a slight diphthong—conveying emphasis rather than a standalone object.
Full pronunciation guide