This is the 1015th most frequent Korean word.
산불
Wildfire.
In this sentence, '산불' is used as a noun to explicitly define the term itself, explaining its meaning: 'fire that occurs in the mountain.'
산불은 산에서 나는 큰 불을 뜻합니다.
Mountain fire means a large fire occurring in a mountain.
Here, '산불' denotes a condition or event, referring to the occurrences of fires in the mountainous areas during summer.
많은 산불이 여름철 건조한 날씨로 인해 발생합니다.
Many mountain fires occur due to dry weather in the summer season.
This sentence uses '산불' in a context denoting a preventable phenomenon, placing emphasis on the actions required to avoid its occurrence.