천둥
Romanisation: cheondung
thunder
Example sentence
밖에서 천둥이 쳐요.
Bakkeseo cheondungi chyeoyo.
It's thundering outside.
What 천둥 means
천둥 (cheondung) is a Korean word meaning “thunder”. It belongs to the Time & Nature topic and appears at Level 3, so it is one of the words worth learning early when you study Korean.