Word Network: ~ㄹ/을 필요가 있다

A requirement, something that is essential or very important.

To be natural; obvious; expected or self-evident.

The act of asking for something forcefully or as a right; a demand or requirement.

Required or essential for a particular purpose.

Necessity; something that is required or indispensable.

To be necessary or required for a particular purpose.

A moral or legal obligation; a responsibility. Often used in IELTS discussions about the role of government or citizens' duties.