A promise to cover a debt, particularly a signed report stating the specific balance due and frequently bearing the letters IOU.
a friendly written note promising to cover the stated sum.
A memorandum or acknowledgment of financial obligation less formal than a promissory note, as well as in The united kingdomt occasionally containing just these letters, using amount owed while the signature regarding the debtor. It's not a promissory note, because no direct guarantee to pay for is expressed.
a friendly debt instrument; representing `we owe you'
A paper wearing it these letters, with a sum called, and duly signed; -- in use in The united kingdomt as an acknowledgment of a debt, and taken as proof thereof, yet not amounting to a promissory note; a due costs.