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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
Borrowed from Russian Политбюро́ (Politbjuró, “politburo of the Communist Party of the Soviet Union”), a contraction of полити́ческое бюро́ (politíčeskoje bjuró, “political bureau”).
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Classic usage
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