| 5000 Vocabulary List for Visiting Scholars in the USA - Page 379 | |||
| Word | Type | Used in a Sentence | Synonym |
| onion | noun | Onions are often used in cooking. | type of vegetable |
| only | adv. | Only three men survived. | no one else but |
| adj. | Only he could lift that heavy load. | no one else but | |
| conj. | You may go, only be careful. | but | |
| onto | prep. | The dog jumped onto the table. | on top of |
| onward | adv. | We must move onwards now. | forward |
| adj. | They moved in an onward direction. | forward | |
| opaque | adj. | It was an opaque covering. | can't see through |
| open | verb | Please open the door now. | release |
| verb | Open your book and read chapter two. | expose | |
| adj. | We held an open meeting. | public | |
| adj. | The house had an open door. | ajar | |
| adj. | There was an open package on the desk. | unsealed | |