(かいそう)

かいそう
noun
layer; stratum; social class
See also: 回想(かいそう) (reminiscence), 改装(かいそう) (renovation), 海藻(かいそう) (seaweed)
1. social class; stratum
A level or rank within a social hierarchy. Used to discuss social stratification, economic classes, and demographic groups.
Social classes are becoming rigid.
Lifestyles differ depending on income class.
The gap has widened, and moving between social classes has become more difficult.
2. layer; tier; level
A level within a structured system, such as floors of a building, layers in computing, or tiers of an organization.
To organize data in a hierarchical structure.
Management is positioned in the upper tier of the organization.
This building is divided into multiple levels from two basement floors to 30 above-ground floors.

Usage

階層(かいそう) is used across many domains: sociology (社会(しゃかい)階層(かいそう)), computing (階層(かいそう)構造(こうぞう)), architecture, and organizational theory.

Common collocations

Watch out

Several words share the reading かいそう but have different meanings: