/ Dictionary / Index B base path: Meaning and Definition of Find definitions for: base' path" Pronunciation: [key] — Baseball. Baseball. the prescribed course for a base runner on the field extending in designated areas between the bases. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. base-pairing rules base pay Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language