Meh, it’s just trivial keyword substitution; not very interesting. `użyj std::zbiory::Słownik;` doesn’t sound right: we’d expect a genitive here.

The Right Thing for Polish would be to leverage the Polish inflection and freeform syntax, in the vein of Perl’s Lingua::Romana::Perligata [0].

[0]: https://metacpan.org/dist/Lingua-Romana-Perligata/view/lib/L...

see also https://github.com/phaux/rdza