A detachable shirt front, collar, or bib worn to give the appearance of a complete shirt. He wore a dickey under his tuxedo to maintain a formal look without the bulk of a full shirt.
A small bird, especially a sparrow. The garden was filled with the cheerful chirping of dickeys in the early morning.
A rumble seat in a car, typically an open seat at the back of a vehicle. The vintage car had a dickey seat that folded out from the rear, providing extra seating.
Indian English: the trunk or boot of an automobile. He loaded the suitcases into the car's dickey before setting off for the weekend.