also: ブレイン
He was involved in making policy as an adviser to the prime minister.
A group of young strategists came up with the election strategy.
brain; brain organ
Katakana use for the physical brain. In ordinary Japanese, 脳 is the normal word; ブレーン or ブレイン is more likely in foreign-word contexts, titles, branding, or explanatory references.
In ordinary writing, it is more natural to write 脳 than ブレイン.
He became the new mayor's brain trust.
She has served as the president's brain trust for many years.
He is active as a brain trust in political circles.