1. a racetrack dry and hard enough for optimum speed.
2. a railroad track for express trains.
3. Informal.a situation or course of action that is intensely pressured or competitive, esp. one in which a person advances rapidly to a higher level in a business or profession: With two promotions in six months, he seems to have chosen the fast track. 4. on a or the fast track,Informal. a. advancing or being promoted more rapidly than usual, esp. in business or other organizational positions: an executive on the fast track. b. expanding or being developed or handled rapidly and often innovatively: a company on the fast track in computer technology. Cf. fast lane.
Pronunciation: (fast'trak', fäst'-),[key] —v.i., v.t. to advance or develop rapidly.