WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / T / thermos flask thermos flask noun /θɜrməsflæsk/ 2 syllables 13 letters Scrabble 24 WWF 25 Definitions noun vacuum flask that preserves temperature of hot or cold drinks thermosthermos bottle Look “thermos flask” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →