WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / U / undecagon undecagon noun /əndɛkəɡɑn/ 4 syllables 9 letters Scrabble 13 WWF 18 Definitions noun an eleven-sided polygon Look “undecagon” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →