/ Dictionary / Index L line of position: Meaning and Definition of Find definitions for: line' of posi'tion Pronunciation: [key] — Navig. Navig. a line connecting all the possible positions of a ship or aircraft, as determined by a single observation. Abbr.: LOP&hasp; Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. line of induction line of scrimmage Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language