| 5000 Vocabulary List for Visiting Scholars in the USA - Page 462 | |||
| Word | Type | Used in a Sentence | Synonym | 
| regime | noun | It was a ruthless regime. | government | 
| regiment | noun | The regiment fought many battles. | three battalions | 
| region | noun | This is a rice growing region. | area | 
| register | noun | They signed the register at the hotel. | ledger | 
| verb | You must register with the police. | sign in | |
| regret | noun | He was filled with regret. | remorse | 
| verb | She regretted not taking her book. | felt bad for | |
| regular | adj. | We ate our regular meal. | normal | 
| adj. | The engine had a regular hum. | even | |
| adj. | He was a regular villain. | perfect | |
| adj. | He was a regular guy. | nice | |
| regulate | verb | They will regulate the price of flour. | control |