dulcimer /dulˈsi-mər/

1. A musical instrument like a flat box with a sounding-board and wires stretched across bridges, played with hand-held hammers
2. A Jewish musical instrument, probably a bagpipe

• do one's nut
• do one's own thing
• do one's stuff
• do one's thing
• do one's worst
• door
• doorbell
• doorbells
• doorcase
• doorcases
• door-cheek
• door-cheeks
• do-or-die
• doorframe
• doorframes
• doorkeeper
• doorkeepers
• doorknob
• doorknobs
• doorknock
• doorknocker
• doorknockers
• doorknocks
• doorman
• doormat