restrictedcode

noun
UK /rɪˈstrɪktɪd kəʊd/
US /rɪˈstrɪktɪd koʊd/

A restricted code is a special way of talking that only a small group of people can understand.

The twins used a restricted code so their parents wouldn't know what they were planning.


OTHER MEANINGS

2. In linguistics, a way of speaking that relies on shared context and is hard for outsiders to follow.

The researchers noted that the workers used a restricted code full of in-jokes and shortcuts.

3. A set of rules in computing that limits what a program or user is allowed to do.

The app runs in a restricted code mode that blocks access to personal files.

4. A hidden pattern of words used to send secret messages.

The spies wrote letters in a restricted code that only their handler could read.