| Vocabulary Words | Meanings |
|---|---|
| buttocks | the two rounded parts we sit on, at the back of our body below the waist |
| button | a round fastening on clothes; any small knob |
| buttonhole | a narrow hole for a button to fit |
| buy | to give money in exchange for something |
| buzz | the humming sound a bee makes |
Examples of back formation
1.Baby-sit (baby-sitter)
2.Gyre (gyroscope)
3.Edit (editor)