Thesaurus.com
Dictionary.com
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

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

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

From The Wall Street Journal • Nov. 6, 2025

While that may be technically correct, the £1.68bn value is based on an IOU that is ultimately backed up by Severn Trent Water itself.

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




Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "IOU" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com