Definition of "indy"

indy¹

noun
plural indies
1. An independent entity.
  Quotations
  To survive, an indy needed hits big enough that distributors would pay up overdue accounts to get them
  2004, Michael Lydon, Ray Charles: Man and Music, page 80
adjective
not comparable
1. Independent, unaffiliated (especially not affiliated with a major organization or company).

indy²

noun
plural indies or indys
1. (motor racing, automotive) A car designed to meet the rules on the Indianapolis 500 car race.
2. (by extension, motor racing, automotive) An open-wheel open-cockpit single-seat racecar
3. (by extension, motor racing) A motorcar race that uses this type of car