This is the 11638th most frequent Korean word.
날아갔다
"Flew away" or "was lost."
In this sentence, "날아갔다" metaphorically represents the disappearance or loss of intangible things, like dreams, as if carried away.
그의 꿈은 산산조각이 나서 모두 날아갔다.
His dreams shattered and flew away.
Here, "날아갔다" literally describes the action of an object, the balloon, flying or being carried through the air.
바람에 불던 풍선이 하늘로 날아갔다.
The balloon blown by the wind flew up into the sky.
In this example, "날아갔다" is used metaphorically to signify the dissipating or disappearing effect on intangible entities like sound.