WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / P / plumb rule plumb rule noun /pləmrul/ 10 letters Scrabble 15 WWF 22 Definitions noun a plumb line attached to a narrow board Look “plumb rule” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →