WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / A / a horizon a horizon noun 9 letters Scrabble 20 WWF 20 Definitions noun the top layer of a soil profile; usually contains humus a-horizon noun the top layer of a soil profile; usually contains humus a horizon Look “a horizon” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →