discount
Reduce the price
disinfect
to cleanse; the opposite of infect
difficult
hard
disgrace
Loss of honor or respect, to be a source of shame
disruption
Interruption or disturbance.
differ
to not be the same
discourage
the opposite of encourage, to lessen the courage or confidence
diffuse
Spread out or scatter
discussion
Discussing to make a decision or share ideas
disconnect
break the connection
differentiate
Notice or express a difference
disapprove
to reject, the opposite of approve
dislike
to not like something
disposal
Getting rid of something
disrupt
Interrupt or disturb