0 money that someone owes that they cannot be forced by law to pay back, but that they have a moral duty to pay back:
He said that 48 nations had contributed to peacekeeping missions and the U.N. considered this "a debt of honor, to be paid immediately."
He obtained 2,000 lire as a debt of honor from the parish priest for continuing his studies.
The author likes to say that history is a debt of honor we owe to the past.
On the day the president signs a bill that provides affordable universal health care, America will owe Ted Kennedy a great debt of honor.
