This is the 4865th most frequent Korean word.
교수들이
"Professors" (plural form).
In this sentence, '교수들이' is used as the subject, referring to multiple professors who carried out the action of informing.
교수들이 학생들에게 중요한 발표를 알렸다.
The professors informed the students about an important announcement.
Here, '교수들이' is used as the subject, denoting that professors are currently engaged in the action of sharing opinions.
교수들이 연구 분야에 대한 의견을 나누고 있다.
The professors are sharing opinions on their research fields.
In this example, '교수들이' serves as the modifier, describing who authored the report mentioned in the sentence.