This is the 15127th most frequent Korean word.
밤샘
Staying up all night.
The term '밤샘' here refers to staying up all night, combined with '공부' (studying) to indicate the activity done during the night.
밤샘 공부는 시험 준비에 효과적이에요.
Staying up all night studying is effective for exam preparation.
Here, '밤샘' describes the action of staying awake throughout the night while performing work duties.
그는 밤샘 야근으로 인해 매우 피곤해 보여요.
He looks very tired due to working overtime all night.
In this case, '밤샘' is used to denote the activity of conversing that lasts all night, emphasizing prolonged engagement.