also: わあっ · わっ
interjection
Expresses surprise, amazement, or sudden realization. Can be positive or negative depending on context.
See also: わっと
わあ、すごい景色！
Wow, what an amazing view!
わあっ、びっくりした！
Eek, you startled me!
interjection
yeah!; alright!; hurray!
Used to express joy, excitement, or approval, often in a celebratory context.
わあ、やった！合格だ！
Yeah, I did it! I passed!
わっと is an adverb describing the manner of crying or shouting loudly, while わあ is the interjection itself.
A natural exclamation; the origin is uncertain, likely sound-symbolic.