noun
One who rides racehorses competitively.
That part of a variable resistor or potentiometer that rides over the resistance wire
(in combination) An operator of some machinery or apparatus.
(dated) A dealer in horses; a horse trader.
(dated) A cheat; one given to sharp practice in trade.
(UK, crime, slang) A prostitute's client.
(Ireland, crime, slang) A rapist.
verb
To ride (a horse) in a race.
To jostle by riding against.
To maneuver (something) by skill; especially, to do so for one's advantage.
To cheat or trick.