d
data()
date$
dcbasic_date
dcbasic_version
declare
deek()
deleteBob()
deleteImage()
deleteImage()
deleteMpeg
deleteSound(n)
deleteSprite()
dim
dir$
directScreen
dirExists()
dirFirst()
dirNext
displayBpp
displayHeight
displayWidth
division
doke()
do ... loop
dualPlayfield()