This is the 6151st most frequent Japanese word.
カッ
"カッ" is an onomatopoeic expression indicating a sudden, intense action or emotion, like a burst or flash.
カッ is used to describe a sudden and intense emotional reaction, often anger, typically arising instantly.
彼はカッとなって怒りをぶつけた。
He suddenly became angry and lashed out.
カッ is used to depict the action of boiling water occurring sharply or abruptly.
水がカッと沸騰した。
The water boiled instantly.
カッ is utilized to characterize the sharp and intense nature of sunlight, emphasizing its overwhelming brightness.