Which word contains the prefix 're-' meaning again?

• A. Undergo
• B. Rewrite
• C. Surround
• D. Refund

Answer: (B)

Prefix re- means again, used to signal doing something once more. In rewrite, the prefix re- is attached to write to give the sense of writing again, which is exactly the “again” usage of the prefix. The other options don’t fit this sense: undergo and surround don’t start with the re- prefix, and refund uses re- with a meaning related to returning back money rather than doing the action again. So rewrite is the best example of re- meaning again.