Merriam-Webster's Collegiate Dictionary:
digestible
digestif
digestion
digestive
digestive gland
digestively
digger
digger wasp
diggings
dight
digit
digital
digital camera
digital computer
digital versatile disc
digital video disc
digitalin
digitalis
digitalization
digitalize
digitally
digitate
digitately
digiti-
digitigrade
digitization
digitize
digitizer
digitizing tablet
digitonin
digitoxigenin
digitoxin
diglyceride
dignified
dignify
dignitary
dignity
digoxin
digraph
digraphic
digraphically
digress
digression
digressional
digressionary
digressive
digressively
digressiveness
dihedral
dihedral angle
dihybrid
dihydr-
dihydro-
dihydroergotamine
dihydrotestosterone
dihydroxy-
dihydroxyacetone
dijon
dijon mustard
dik-dik
dike
diker
diksmuide
diktat
dil
dilantin
dilapidate
dilapidated
dilapidation
dilatability
dilatable
dilatancy
dilatant
dilatation
dilatational
dilate
dilated
dilation
dilative
dilatometer
dilatometric
dilatometry
dilator
dilatorily
dilatoriness
dilatory
dildo
dilemma
dilemmatic
dilettante
dilettantish
dilettantism
dili
diligence
diligent
diligently
dill
