The upper class or group in society that holds special privileges, rights, or advantages (often used in political or historical contexts).
革命は特権階級に対する不満が原因で起こった。
The revolution was caused by dissatisfaction with the privileged class.
一部の富裕層は税制上の優遇で事実上の特権階級になっている。
Some wealthy groups have become a de facto privileged class due to tax advantages.
近代化とともに伝統的な特権階級の力は弱まった。
With modernization, the power of traditional privileged classes weakened.