WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / N / nightmare nightmare noun /naɪtmɜr/ 2 syllables 9 letters Scrabble 15 WWF 17 Definitions noun a situation resembling a terrifying dream incubus noun a terrifying or deeply upsetting dream Look “nightmare” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →