| A | B |
| Extent | The area covered by something. |
| Extinguish | To put out a light or fire. |
| Automatic | A machine that does something by itself. |
| Autobiography | A person who writes about themselves. |
| Unicorn | A magical creature. |
| Unify | When people get together or come together as whole. |
| Unite | When people work together as one. |
| Universe | Space |
| Unicycle | A bicycle with one wheel. |
| Biceps | A muscle in your arm. |
| Root word meaning for uni | one |