| A | B |
|---|
| debate | a formal contest in which opponents argue for opposing sides of an issue |
| decision | a final or definite conclusion; a judgement |
| defense | something that protects against attack, harm, or challenge |
| defeat | failure to win |
| occasion | a significant event or happening |
| obvious | easily perceived or understood; evident |
| describe | to transmit an impression or image with words; to picture verbally |
| occupy | to dwell in or inhabit |
| observe | to perceive, notice, or watch attentively |
| demand | an insistent request |
| determine | to fix, settle, or decide |
| oblige | to satisfy the wishes of; do a service or favor for; please |
| occur | to take place, come about or to happen |
| dedicate | to set apart for a special purpose; to give wholly; to devote |
| decay | to rot, become rotten, or fall into ruin |
| demonstrate | to display, operate, or explain |
| decrease | to make or become gradually less or smaller; diminish |
| decline | to refuse to accept or do |
| obtain | to gain the possession of after planning or endeavor; get or aquire |
| detour | a deviation from a direct route or course |
| obscure | unclear; difficult to understand; to conceal from view or hide |
| obstacle | something that opposes, retards, or stands in the way of progress towards a goal |
| deliberate | done or said on purpose; intentional |
| obstinate | stubborn; resistant to argument or reason; inflexible |
| deficient | lacking an important element or elements; inadequate |
