| 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 date |
| Postpone | Schedule something for after the original date |
| Postmark | Mark on stamp place after it was mailed |
| Postindustrial | Time in society after the industrial revolution |
| Unicellular | One cell |
| Unit | One group of something |
| Unison | A group saying same words together as one |
| United | Joined together as one |
| Unique | One of a kind |
| Multicellular | Many cells |
| Multilayer | Many layers |
| Multiply | To increase by many |
| Multiple | Having many members or parts |
| Multimedia | Having many forms of communication i.e. sound/video |
