From WordNet (r) 2.0 (August 2003) [wn]:
jitney
n : a vehicle carrying many passengers; used for public
transport; "he always rode the bus to work" [syn: bus,
autobus, coach, charabanc, double-decker,
motorbus, motorcoach, omnibus]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
jitney \jitney\ n.
1. a small bus or similar vehicle carrying passengers on a
fixed route, used for public transport. [WordNet sense 1]
Note: Probably so called because they once charged a nickel
for the ride. --RHUD
[WordNet 1.5]
2. A five-cent piece; a nickel. [slang, archaic]
[PJC]