Definition of "arrear" []

• Work to be done, obligation. (noun)
• Unpaid debt. (noun)

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• "Fiction is always far in arrear of popular opinion, but there are a few romancers who are coming abreast of the times in portraiture."
• "Fortunately – for we were nine months in arrear of pay – money was so scarce that a trifle of ready money produced a great deal."
• "I transfer the civil government without a single particle of business in arrear, and with a treasury without a debt, while all the civil officers have worked under me with energy and zeal."