In hungarian the articles are only "a"(which actually works like the english "the" but with a form that is "az" which is like "a" turning into "an" in english) and then "egy" which means "a" in english but also means the number one. Most times from what i notice it works pretty closely to what german or english does. Where my whole "it works pretty intuitively" argument falls apart is that you conjugate your freaking verbs and they work in sometimes completely mysterious ways.

"Eszek egy almát" and "Eszem az almát" -- these are just "I eat an apple" and "I eat the apple"

But "Almát eszek" also works it just sounds more like you are specifically pointing out that its an apple that you are eating(and not an orange for example) and even tho its in the indefinite form it can sound pretty definite depending on context.

But then "Almát eszem" sounds like you are eating a person named Alma because for some reason not having the article makes it sound more personal.

"Eszek" is just eating

And at last "Eszem" sounds like you are pointing out that "I am eating that" or "I am eating that". Also if its in a more rural dialect it could be just the base form.

So yeah its an absolute brainfuck in hungarian.