| 5000 Vocabulary List for Visiting Scholars in the USA - Page 523 | |||
| Word | Type | Used in a Sentence | Synonym |
| Sir | adj. | Sir William was knighted by the Queen. | title |
| siren | noun | The siren signaled an air raid. | horn |
| sister | noun | My sister works in Tokyo. | my mom's daughter |
| sit | verb | Please sit here. | rest |
| site | noun | This is the site of our new factory. | location |
| situation | noun | It is a difficult situation. | predicament |
| noun | He has a good situation. | status | |
| six | adj. | She had six children. | 6 |
| sixteen | noun | She was sixteen and very pretty. | 16 years old |
| sixth | adj. | It is the sixth time I have been here. | ordinal 6 |
| sixty | noun | Last week she turned sixty. | 60 years old |
| size | noun | Her dress size is 16. | measurements |
| noun | He wanted the large size of toothpaste. | amount | |