/ Dictionary / Index S sand bar: Meaning and Definition of Find definitions for: sand' bar" Pronunciation: [key] a bar of sand formed in a river or sea by the action of tides or currents. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sandbar (Thesaurus) sandbank sandblast Related Content Daily Word Quiz: illegible Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language