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Definitions

IOU

NOUN
promissory note
Synonyms


I.O.U.
NOUN
debenture
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Essentially, you borrow from the account and create an IOU to yourself.

From MarketWatch • Jan. 14, 2026

Should a player lose beyond his ability to pay, the others may allow him time to pay off his loss—usually, time until the next game—and he may offer up an IOU.

From The Wall Street Journal • Nov. 6, 2025

If the IOU isn’t redeemed in good time, the players have a problem.

From The Wall Street Journal • Nov. 6, 2025

In the wider group accounts the made-up money is cancelled out by the IOU that Draycote issued, so it is only the balance sheet of the regulated water company, Severn Trent Water, that is inflated.

From BBC • Dec. 9, 2024

He’ll know something’s up in the same way he always knows which customer is going to shoplift or who’s good for an IOU and who’s not.

From "The Sun Is Also a Star" by Nicola Yoon




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