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concealment; hiding; covering up; suppression
証拠の隠蔽が発覚して逮捕された。
Evidence concealment was discovered and led to arrest.
不都合な事実を隠蔽してはならない。
Inconvenient facts must not be covered up.
隠蔽工作が組織的に行われていた。
Cover-up operations were being conducted systematically.