ryba (singular)
ryby (plural) The word "fish" is countable in the Polish language and hastn't the zero-deriviation {fish} + {s} = fish
korek
"Głowa ryby", if what you write is not a kind of an idiom
Niebieska means blue, ryba means fish. So it's "Niebieska ryba".
Polish in Polish is "Polski".
"Åšledzik" in Polish means herring (a fish).
To say Jonathan in Polish, you would say "Janusz."
"No" in Polish is "Nie".
To say "uncle" in Polish, you would say "wujek."
To say "June" in Polish, you would say "czerwiec."
You can say "the end" in Polish as "koniec."
This is how you say five in Polish: Pięć
this is how you say today in polish: dzisiaj :PPP