/ Dictionary / Index F foreshock: Meaning and Definition of Find definitions for: fore•shock Pronunciation: (fôr'shok", fōr'-), [key] — n. Geol. a relatively small earthquake that precedes a greater one by a few days or weeks and originates at or near the focus of the larger earthquake. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: foreshock (Thesaurus) foresheet foreshore Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language