# IOU

> English word · Phrase · frequency rank #69,965

## Definitions
1. I owe you.

## Etymology
From the pronunciation of "I owe you". Attested since at least 1618.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/iou