What does 階層 mean?
階層 is a Japanese noun meaning “class, hierarchy” in English. It is written as 階層 in kanji, かいそう in hiragana, and kaisou in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
階層問題に対する、消費社会論の著である。
It is a literary work confronting the class problem of a consumer society.