WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / E / extension rule extension rule /ɪkstɛnʃənrul/ 14 letters Scrabble 20 WWF 24 Definitions Look “extension rule” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →