This is the 2273rd most frequent Korean word.
필요성이
"필요성이" means "necessity" or "need."
Here, '필요성이' refers to the significance of a need or necessity for planning as a critical factor for successful completion of the project.
이 프로젝트를 성공적으로 완료하기 위해서는 계획의 필요성이 매우 큽니다.
To successfully complete this project, the necessity of planning is very high.
In this sentence, '필요성이' emphasizes the universally recognized importance of education.
교육의 필요성이 모든 사람에게 중요하다는 점은 분명합니다.
The necessity of education is clear and important to everyone.
This usage of '필요성이' highlights the growing importance attributed to the protection of the environment in public discourse.