| A | B |
|---|
| bi- | two, twice |
| semi- | half, partly |
| bicameral | consisting of two chambers or legislative houses |
| bicentennial | two hundreth anniversary |
| biennial | occurring every two years |
| semiannual | occurring every half year, or twice a year; semiyearly |
| bimonthly | occurring every two months |
| semimonthly | occurring every half month or twice a month |
| bilateral | having two sides |
| bilingual | 1. speaking two languages equally well; 2. written in two languages |
| bipartisan | representing two political parties |
| bisect | divide into two equal parts |
| semicircle | half a circle |
| semiconscious | half conscious; not fully conscious |
| semidetached | partly detached; sharing a wall with an adjoining building on one side, but detached on the other |
| semiskilled | partly skilled |
