| 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 |
Non-defining relative clause
Non-defining relative clauses are placed after nouns which are definite already.
The adjective clause which does not define the noun before it but gives additional information about the noun is called the non-defining relative clause.