WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / M / millisecond millisecond noun /mɪlɪsɛkənd/ 4 syllables 11 letters Scrabble 16 WWF 21 Definitions noun one thousandth (10^-3) of a second msec Look “millisecond” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →