"Meat and a fish"
Translation:Mięso i ryba
what do you mean exactly.? most often the difference between endings means different case, number, gender, person depending on the word.
I guess you mean between rybę and ryba.- ryba is nominative case. rybĘ (with a diacretic-ogonek "little tail") is in accusative case.
Nominative is a "dictionary" case, used as subject of the sentence and in "to" sentences.
(to jest ryba, ryba jest smaczna- this is a fish. A fish is tasty)
Accusative is a case which most verbs require for direct object in positive sentence. (jem rybę- I am eating a fish)