This is the 1962nd most frequent Korean word.
뜨거운
"뜨거운" means "hot."
Here, '뜨거운' is used as an adjective to describe the temperature of the coffee, which is hot.
뜨거운 커피를 마시면 조심해야 합니다.
When drinking hot coffee, one must be careful.
In this sentence, '뜨거운' describes the weather, indicating it is hot and likely causing physical discomfort or sweating.
뜨거운 날씨 때문에 땀이 많이 났어요.
Because of the hot weather, I sweated a lot.
Here, '뜨거운' metaphorically describes intensity, conveying the concept of passionate enthusiasm.