Definitions
1.NounA horse-drawn, and then later, motorized omnibus with open sides, and often, no roof.
2.NounA bus, especially one hired by groups for pleasure outings, what was later called a coach.
3.NounA vehicle that is slow, overcrowded, or otherwise undesirable.
4.NounAn elaborate production or endeavor involving many people or things.
5.VerbTo travel or convey by charabanc.