This is the 1244th most frequent Korean word.
필요
"필요" means "need" or "necessity."
The word '필요' represents a direct need or requirement for the subject.
나는 이 도구가 필요해.
I need this tool.
Here, '필요' is paired with '필수적' to denote an essential need.
좋은 교육은 성공에 필수적으로 필요하다.
A quality education is essential for success.
In this example, '필요' describes a necessary condition for completing a task.