rider
//ˈraɪdər//
Noun
riderSingular
ridersPlural
1
A person who rides a horse, bicycle, motorcycle, or other vehicle.
The rider wore a helmet while cycling through the park.
2
A clause or provision added to a document, especially a legislative bill or contract.
The senator added a rider to the bill that increased funding for education.
3
A passenger on public transportation.
The bus was full of riders during rush hour.