| A | B |
| preschool | school before kindergarten (pre) |
| premeditate | to plan to do something before you do it (pre-) |
| preview | to look over something before it is finalized (pre-). |
| prepare | to get ready for something before it happens (pre-) |
| prejudge | to judge someone before all the facts are known (pre-) |
| nonrenewable | cannot be made new or used again (pre-) |
| rebuild | build again (re-) |
| revisit | visit again (re-) |
| reappear | appear again (re-) |
| review | look something over again (re-) |
| dishonest | not honest (dis-) |
| displace | to move something out of its usual place (dis-) |
| dislocate | to move something out of its location (dis-) |
| dismiss | to send away (dis-) |
| disobedient | to not follow the rules or not do what you are told to do (dis-) |
| overboard | fall off the board or the ship (over-) |
| overact | to exaggerate your actions (over-) |
| overspend | spend more money than you should (over-) |
| overcharge | to charge more money than you (over-) should |
| overflow | to flow over the edge of the container (over-) |
| uncover | take the cover off (un-) |
| unable | not be able to do something (un-) |
| unbutton | to take the buttons out of the buttonholes (un-) |
| uncertain | to not be sure of something (un-) |