WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / I / iou iou noun 1 syllables 3 letters Scrabble 3 WWF 4 Definitions noun an informal debt instrument; representing `I owe you' Look “iou” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →