i.o.u

IOU

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

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Collins
World English Dictionary
IOU
 
n
a written promise or reminder to pay a debt
 
[C17: representing I owe you]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Cultural Dictionary

IOU definition


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

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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American Heritage
Abbreviations & Acronyms
IOU
a note of debt (from "I owe you")
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Synonyms
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