| A | B |
| biannual | event occurs twice a year |
| commiserate | you feel sorrow for someone else's trouble |
| compile | collect (as in to gather) |
| illegal | against the law |
| bivalve | a shell with two parts that hinge together |
| hydroplane | vehicle that can land and take off on water |
| hydroelectric | energy made from waterpower |
| monotone | unchanging sound and style |
| monosyllable | word with one "beat" |
| illiterate | someone who cannot read |