| A | B |
| crucial | very important; critical |
| dashing | full of energy and spirit; lively |
| debris | rubble; scattered fragments; rubbish |
| defiant | resistant; boldly challenging |
| deliberate | to think out carefully; to ponder; intentional |
| destiny | fate; what is determined to happen |
| designate | to point out; to select or appoint |
| dialogue | a conversation; spoken passages between characters in a story or play |
| diaphragm | a thin dividing layer |
| diplomatic | having to do with relations between countries; skillful in dealing with people; tactful |