Definition of oyabun in English:
oyabun
noun
In Japan: a boss, a chief; specifically the boss of an organized crime syndicate or of a labour organization.
Pronunciation
oyabun
/ˈɔɪəbʊn/ /ˈəʊjəbʊn/Origin
1940s; earliest use found in American Political Science Review. From Japanese oyabun boss, head from oya parent + -bun, suffix denoting an assumed relation between one person and another, or the person thus related (from Middle Chinese).
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