This is the 13153rd most frequent Korean word.
두뇌
Brain.
Here, 두뇌 (brain) is used metaphorically to emphasize mental engagement and stimulation.
두뇌 운동을 위해 매일 퍼즐 게임을 해요.
I do puzzle games daily for brain exercise.
In this sentence, 두뇌 (brain) is mentioned in its biological and anatomical sense.
두뇌는 전체 신경계의 중심 역할을 합니다.
The brain plays a central role in the entire nervous system.
The word 두뇌 (brain) refers to intellectual or cognitive ability in this context.