noun
top brass; upper echelon; higher-ups; top management
Refers to the senior leadership or decision-making level within a company, government, or other organization. Often used in contexts of policy, decisions, or internal dynamics.
その決定は上層部で行われた。
The decision was made by the top brass.
上層部の意向が現場に伝わっていない。
The intentions of the higher-ups aren't reaching the front lines.