WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / R / rust fungus rust fungus noun /rəstfəŋɡəs/ 11 letters Scrabble 14 WWF 19 Definitions noun any of various fungi causing rust disease in plants rust Look “rust fungus” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →