| 5000 Vocabulary List for Visiting Scholars in the USA - Page 449 | |||
| Word | Type | Used in a Sentence | Synonym |
| radical | adj. | There was radical social change. | extreme |
| noun | Chairman Mao was a radical. | revolutionary | |
| radio | noun | We listen to the radio each evening. | receiver |
| verb | The police radioed an alert. | transmitted | |
| radius | noun | All within a radius of 25 miles came. | extent |
| rag | noun | She cleaned the table with a rag. | cloth |
| rage | noun | He was in a rage. | fury |
| raid | noun | The police made a raid on the thieves. | assault |
| rail | noun | We will go to the city by rail. | train |
| noun | The rails are an important link. | railroads | |
| railroad | noun | We took the railroad to Seattle. | train |
| rain | noun | The rain was heavy at times. | downpour |
| verb | It will rain today. | shower | |