| A | B |
| benefit | anything that promotes well being; a payment to one in need |
| benevolent | wishing someone well; inclined to do good |
| binoculars | field glasses for use with two eyes |
| benefactor | one who does something good; one who gives help or financial assistance |
| beneficiary | a person who receives benefits, as from a will or an insurance policy |
| bisect | to cut in two; as a diameter bisects a circle |
| biped | a two-footed animal |
| bicuspid | a tooth having two points |
| bilingual | able to use two languages |
| bipartisan | consisting of or supported by two parties, especially two major political parties |