Common words:
* Deadline
* Downpour
* Downtown
* Drawbridge
* Dreamland
* Drywall
* Daybreak
* Darkroom
* Dashboard
* Daydream
Less common words:
* Dauntless
* Dewdrop
* Dogwood
* Doorstop
* Doubletalk
* Doubleheader
* Downhill
* Deep-seated
* Dreadnought
* Drop-off
* Dweller
Phrases that act as compound words:
* Drop-dead gorgeous
* Dead-end job
* Down-to-earth
* Do-it-yourself
Other options:
* Dime-store
* Double-decker
* Door-to-door
* Dead-set
This is not an exhaustive list, but it gives you a good starting point. You can use a dictionary or online resources to find more compound words starting with "d".