꼭
kkok · TOPIK 1
surely, without fail
🔒 kkok sounds like cock: a rooster crows at dawn without fail
꼭 (kkok) is close to the first beat of cock-a-doodle-doo. A rooster never skips a morning, so kkok = surely, without fail. The tense double ㄲ gives it a firm, clipped sound that matches the firmness of the promise.