| A | B |
| Preapprove | Give permission in advance |
| Precaution | A measure taken in advance to prevent harm |
| Precede | To come before something else in sequence |
| Predict | To say what will happen before it occurs |
| Prefix | Word part that comes before the root word |
| Preview | To see something before or in advance |
| Postdate | To date after the real due date |
| Postpone | Schedule something for after the original date |
| Postmark | Mark on stamp placed after it was mailed |
| Postindustrial | Time in society after the industrial revolution |