\ProvidesDictionary{translator-environment-dictionary}{Czech}

\providetranslation{advantage}{v\'yhoda}
\providetranslation{Advantage}{V\'yhoda}
\providetranslation{advantages}{v\'yhody}
\providetranslation{Advantages}{V\'yhody}
\providetranslation{disadvantage}{nev\'yhoda}
\providetranslation{Disadvantage}{Nev\'yhoda}
\providetranslation{disadvantages}{nev\'yhody}
\providetranslation{Disadvantages}{Nev\'yhody}