A cabdriver, someone who drives a taxi.
A rapist.
One who rides racehorses competitively.
An operator of some machinery or apparatus.
A prostitute's client.
That part of a variable resistor or potentiometer that rides over the resistance wire
The selling of an unsound horse for a sound price is regarded by a Yorkshire jockey
To cheat or trick.
To jostle by riding against.
To maneuver (something) by skill for one's advantage.
To ride (a horse) in a race.