1. a detachable shirt front or false shirtfront worn to give the appearance of a dress shirt
Usage: clothing
2. a small bird
Usage: informal; British
3. the driver’s seat or a small additional seat in a vehicle
Usage: British; automotive

Examples

• He wore a tuxedo with a white dickie for the formal dinner.
• The vintage car had a dickie seat in the back for extra passengers.
• She spotted a little dickie perched on the garden fence.
• The formal shirt came with a detachable dickie front.
• The old roadster’s dickie provided a cramped but functional extra seat.
• He adjusted his dickie before entering the ballroom.