The term "de-coder" refers to a tool or device that translates or converts a code or cipher into its original form. Some synonyms for the word include decipherer, decoder, decrypter, translator, and codebreaker. A decipherer is someone who can read and interpret codes and ciphers, while a decoder is a device that performs the same task. A decrypter is another technology used to unscramble encrypted messages, which can only be deciphered with a unique encryption key. A translator can also be used to convert one language or system of codes into another, and a codebreaker is someone who can crack complex codes and ciphers, using their decoding skills and specialized knowledge.