And the special language of the specialist is a substitute for thought.
Another is the use of a special language to cast spells.
This technique is personal and could be called "a special language".
Esperanto is a special language that was designed to be easy to learn.
They were written in the same special language used at the previous two castles.
They use special names, even a special language at times.
Who else would devote a whole dictionary to the special language of a single city?
The diner has its own special language for ordering some items.
The words they had said to each other in their special language?
The special language that is shared by two people who love one another.