/ Dictionary / Index F fullback: Meaning and Definition of Find definitions for: full•back Pronunciation: (fool'bak"), [key] — n. Football. a running back who lines up behind the quarterback and is farthest from the line of scrimmage. the position played by this back. (in soccer, Rugby, field hockey) a player stationed near the defended goal to carry out chiefly defensive duties. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fullback (Thesaurus) fullam full binding Related Content Daily Word Quiz: dormant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language