WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / S / swiftness swiftness noun 9 letters Scrabble 15 WWF 16 Definitions noun a rate (usually rapid) at which something happens fastnessspeed Look “swiftness” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →