WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / 3 / 366 days 366 days noun 8 letters Scrabble 8 WWF 7 Definitions noun a calendar year with an extra day added in February bissextile yearintercalary yearleap year Look “366 days” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →