WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / O / octane number octane number noun 3 syllables 13 letters Scrabble 18 WWF 24 Definitions noun a measure of the antiknock properties of gasoline octane rating Look “octane number” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →