Yes, the #word relationships are language specific.
You could change the #word of any primitive to one from your language. Also set the #meaning of your word back to the primitive.
You could create a response list file that does this that uses the "script:" token.
script: #why.word = "perché"; "perché".meaning = #why;
script: #where.word = "dove"; "dove".meaning = #where;
The primitives are just symbols, you can create your own primitive to define any unique object. Some of the primitives are used internally, such as #instantiation and #word, some are used by various scripts, and you can create your own to use in your own scripts.