WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / S / semicentennial semicentennial nounadjective 14 letters Scrabble 18 WWF 24 Definitions noun the 50th anniversary (or the celebration of it) semicentenary adjective of or relating to or marking the 50th anniversary semicentenary Look “semicentennial” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →