WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / T / three year old three year old nounadjective 14 letters Scrabble 19 WWF 18 Definitions noun a racehorse that is three years old three-year-old horse adjective three years of age Look “three year old” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →