| A | B |
| preapprove | give permission in advance |
| preview | look at something before |
| precaution | doing something in advance to prevent harm |
| prevent | stop something before it occurs |
| precede | to come before in time, order, rank |
| pretest | a test before the real test |
| predict | to say what will happen before it occurs |
| prepay | to pay before somethings needs to be paid |
| prefix | something added to the beginning of a word to change its meaning |
| prejudge | to make a decision before you have all the facts |