To accelerate the progress of.
To perform (a task) fast and efficiently.
To perform the duties of an expediter.
Expeditious; quick; prompt.
Free of impediment; unimpeded.
To progress something with unusual rapidity.
A racetrack with optimum conditions for high speeds
A railroad for express trains.
The quickest or most direct method or path.
A high-pressure or intensely competitive situation, particularly one characterised by rapid advancement.