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Definitions

I.O.U.

NOUN
debenture
Synonyms


IOU
NOUN
promissory note
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.

See Examples For:

Her contributions are a gift, not fulfillment of an I.O.U.

From Slate ● Feb. 17, 2022

He bought homes for poor families and carried in his wallet a $1,500 I.O.U. from Ralph Guldahl, to whom Sam had staked a loan when Guldahl was struggling.

From Golf Digest ● Jul. 8, 2019

Note to self: Find ad with pic of cheetah, for I.O.U. coupon.

From The New Yorker ● Oct. 8, 2012

Mr. Hayward last week said BP could pay all or part of its dividend in "scrip," effectively an I.O.U. to shareholders.

From The Wall Street Journal ● Jun. 14, 2010

Also, an I.O.U. for the new Luis Alberti record when we next go to the capital.

From "In the Time of the Butterflies" by Julia Alvarez

As of Sept. 30, the IOU stood at $233 billion, enough to pay for the renovation 98 times.

From MarketWatch ● Oct. 7, 2026

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

From MarketWatch ● Jan. 14, 2026

If the players acknowledge the worth of the IOU and its holder bets it as if it were cash, it must be accepted at face value by the pot’s winner.

From The Wall Street Journal ● Nov. 6, 2025

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

On the shore was a canoe rental operation that was closed for the season, but I left a stack of golden drachmas on the counter and a note saying IOU two canoes.

From "The Titan's Curse" by Rick Riordan




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