꼭 필요한

essential; absolutely necessary

→ 꼭
phrase Uncommon #12,658
essential; absolutely necessary 꼭 adds emphasis, meaning that something is definitely or absolutely necessary.
KO: 여행할 때 꼭 필요한 것은 여권이에요.
EN: A passport is essential when traveling.

근데 꼭 필요한 건 가요, 윌리?

But is it really necessary, Willie?

— 콘클라베 (2024)

돈이 꼭 필요한 사람들이 많아.

A lot of people really need money.