Found 2 items, similar to IOU.
English → English (WordNet) Definition: IOU IOU n : an informal debt instrument; representing `I owe you'
English → English (gcide) Definition: IOU I O U \I O U\, IOU \I.O.U\([imac]" [=o]" [=u]"). [phonetic, from I owe you.] A paper having on it these letters, with a sum named, and duly signed; -- in use in England as an acknowledgment of a debt, and taken as evidence thereof, but not amounting to a promissory note; a due bill. --Wharton. --Story. [1913 Webster]