Codebreaker

Pronunciation: /ˈkoʊdˌbreɪkər/

Codebreaker (noun)

  1. A person who finds the meaning of a message written in a secret code.
  2. A specialist who studies coded messages to understand plans or information for national security.

Examples

  • The codebreaker solved the secret message quickly.
  • A codebreaker can decode hidden notes without help.