Breadcrumb Home > Dictionary > Index J Jacobs: Meaning and Definition of Find definitions for: Ja•cobs Pronunciation: ( jā'kubz), [key] — n. born 1908, U.S. tennis player. 1904–70, U.S. thoroughbred horse trainer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: jacobs (Thesaurus) Jacobite glass Jacobsen ✖ Related Content Daily Word Quiz: acronym Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language