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(being in) the red; deficit
red letter; red writing
corrections (by a teacher or proofreader) written in red
売上が減って、会社が赤字になってしまいました。
The company went into the red.
今月は出費が多くて赤字で困っています。
I'm in trouble because I'm in the red this month.
三期連続の赤字で経営陣の責任が問われた。
Three consecutive quarters of deficits called the management's responsibility into question.