WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / I / inertial navigation system inertial navigation system noun 26 letters Scrabble 33 WWF 39 Definitions noun a system to control a plane or spacecraft; uses inertial forces inertial guidance system Look “inertial navigation system” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →