WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / E / externalities externalities noun 13 letters Scrabble 20 WWF 22 Definitions noun Plural of externality. Look “externalities” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →