/ Dictionary / Index N navigable: Meaning and Definition of Find definitions for: nav•i•ga•ble Pronunciation: (nav'i-gu-bul), [key] — adj. deep and wide enough to provide passage to ships: a navigable channel. capable of being steered or guided, as a ship, aircraft, or missile. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: navigable (Thesaurus) navig. navigable semicircle Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language