| A | B |
| bio, bious | life |
| biology | the study of living thigns |
| biography | the story of a person's life |
| amphibious | able to live on land and in water |
| dic, dict | to say |
| diction | the choice and use of words |
| predict | to say in advance |
| verdict | the decision of a jury in a legal matter |
| contradict | to say the opposite |
| sub | under; close to |
| submerged | covered with water |
| suburb | a community on the outer edge of a larger city |
| subdue | to conquer; to bring under control |
| substitute | a person or thing that takes the place of another |
| submissive | yielding to authority |
| dia | through, between, across |
| diagnose | to find the cause of a problem by close examination |
| dialogue | a conversation between two or more people |
| -ian | one who has a relationship to |
| physician | a person skilled in the art of healing; a doctor |