The upper stratum or layer; the top levels of a building, organization, or other layered structure.
企業の上層は構造改革に賛成した。
The top management of the company supported the structural reforms.
建物の上層に住む住人は眺めが良い。
Residents living in the upper floors of the building have a good view.
社会の上層と下層の格差が問題になっている。
The gap between the upper and lower social strata has become an issue.