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Definition of “IOU” - English Dictionary

"IOU" in American English

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IOUnoun [C]

(plural IOUs or IOU’s)
abbreviation for I owe you (= a written promise to pay back money owed): I’ll give you an IOU for the loan.
(Definition of IOU from the Cambridge Academic Content Dictionary © Cambridge University Press)







"IOU" in British English

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IOUnoun [C]

uk   /ˌaɪ.əʊˈjuː/  us   /ˌaɪ.oʊˈjuː/
abbreviation for I owe you: a written promise to pay back a debt: Here's an IOU for the fiver you lent me. I'll pay you back on Monday.
(Definition of IOU from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)

"IOU" in Business English

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IOUnoun [C]

uk   us   /ˌaɪəʊˈjuː/ informal
abbreviation for I owe you: a written promise to pay back a debt: The New York agent now has an IOU for $1,000.
(Definition of IOU from the Cambridge Business English Dictionary © Cambridge University Press)
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