WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / S / sesquicentennial sesquicentennial noun 16 letters Scrabble 27 WWF 33 Definitions noun the 150th anniversary (or the celebration of it) Look “sesquicentennial” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →