WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / O / octane rating octane rating noun 13 letters Scrabble 15 WWF 19 Definitions noun a measure of the antiknock properties of gasoline octane number Look “octane rating” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →