IOU

1.
a written acknowledgment of a debt, especially an informal one consisting only of the letters IOU, the sum owed, and the debtor's signature.
Also, I.O.U.
Origin
1610-20; representing I owe you
British Dictionary definitions for IOU

IOU

noun
1.
a written promise or reminder to pay a debt
Word Origin
C17: representing I owe you
IOU in Culture

IOU definition


Abbreviation for “I owe you.” An IOU is a written statement of a borrower's obligation to pay a debt.

Slang definitions & phrases for IOU

IOU

noun

A promise to pay; written acknowledgment of a debt: had won $800,000, in cash, not IOUs (1618+)


Related Abbreviations for IOU

IOU

a note of debt (from "I owe you")