running mate definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- a horse used in a race to set the pace for another horse from the same stable
- a candidate for the lesser of two closely associated offices, as for the vice-presidency, in his or her relationship to the candidate for the greater office
running mate definition by American Heritage Dictionary
- The candidate or nominee for the lesser of two closely associated political offices.
- A companion.
- A horse used to set the pace in a race for another horse.