| A | B |
|---|
| ambiguous | open to more than one interpretation, having a double meaning |
| ambidextrous | able to use both hands equally well |
| ambition | a strong desire to do or achieve something that typically requires hard word |
| ambiance | the character and atmosphere of a place |
| ambiparous | having both leaves and flowers |
| beneficial | favorable or advantageous, resulting in good |
| benevolent | well meaning and kindly |
| benefactor | a person who gives money or other help to a person or cause |
| beneficient | (of a person) generous or doing good |
| benefit | bring advantage to; to receive a profit or gain |
| autograph | a signature, to write one's signature, or written in the author's own handwriting |
| autoimmune | relating to disease caused by antibodies |
| autoimmunization | antibody production by an organism in response to and against any of its own tissues, cells, or components |
| autonomy | the power or right of self-government; self-government, or political independence of a city or a state |
| autotrophic | capable of self-nourishment |
| chronic | continuing for a long time |
| chronicle | a record of events in time |
| chronology | the science of recording events by period and date |
| synchronous | happening at the same time |
| isochronous | taking equal time |
