This is the 2531st most frequent Korean word.
무엇이
"What."
In this sentence, '무엇이' serves as the subject of the sentence, directly asking what is needed.
무엇이 필요합니까?
What is needed?
Here, '무엇이' is used to inquire about something specific that holds importance to the person addressed.
당신에게는 무엇이 중요합니까?
What is important to you?
In this context, '무엇이' is seeking to identify the subject or matter of discussion with regard to a problem.