complexsubstitutioncode

noun
UK /ˈkɒm.plɛks ˌsʌb.stɪˈtjuː.ʃən kəʊd/
US /ˈkɑːm.plɛks ˌsʌb.stɪˈtuː.ʃən koʊd/

A secret code where each letter or symbol is swapped for a different one to hide a message.

The spy used a complexsubstitutioncode to keep the treasure map secret.


OTHER MEANINGS

2. A method in computer science where one set of characters is replaced by another to protect data.

The program applied a complexsubstitutioncode to scramble the password file.

3. A puzzle where you must figure out which symbol stands for which letter.

Solving the complexsubstitutioncode in the newspaper took her all morning.

4. A way of writing used in games to make messages look like gibberish to others.

The kids wrote their club rules in a complexsubstitutioncode so adults couldn't read them.