/ Dictionary / Index S ship's inertial navigation system: Meaning and Definition of Find definitions for: ship's' iner'tial naviga'tion sys"tem. Pronunciation: [key] See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. shipside ship's papers Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language