The initial idioms of the letter D

differential	differentiate between
differentiate from	differentiate
difficult	difficult is done at once; the impossible takes a
diffuse through	dig
dig (oneself) an early grave	dig (someone)
dig (something)	dig at
dig deep	dig down
dig for	dig heels in
dig (someone or oneself) out of a hole	dig (one's) own grave
dig in	dig in (one's) heels
dig in heels	dig into
dig into pocket	dig it
dig it out	dig (someone) an early grave
dig one's own grave	dig out
dig out of	dig own grave