| A | B |
| antedate | to come before in time |
| anti-aircraft | against aircraft |
| bilateral | having two sides |
| circumnavigate | to go around by water; to sail around |
| combination | things that go together |
| conjunction | word that joins words or phrases together |
| descent | the act of going down a slope |
| dismiss | send away |
| equilateral | having equal sides |
| extraordinary | beyond ordinary |
| interstellar | between stars |
| intravenous | within the veins |
| introvert | a person who is turned into himself (shy) |
| malevolent | showing hatred or spite |
| misfortune | bad fortune |
| nonprofit | not-for-profit |
| postscript | a note added after a letter |
| premonition | a warning before |
| semicircle | a half circle |
| subordinate | under in rank |
| superfluous | over what's necessary |
| synchronize | to time together |
| symbiotic | living together beneficially |
| triumvirate | a ruling body of 3 people |
| unearned | not earned by work |