D defs.my
Entry 1 sense Webster, 1913

I O U

/(ī" ō" ū")/ · IPA
01 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 ev…
  1. 1.
    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.