WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / E / eocene eocene noun /iəsin/ 3 syllables 6 letters Scrabble 8 WWF 10 Definitions noun from 58 million to 40 million years ago; presence of modern mammals eocene epoch Look “eocene” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →