barátjukkal
Barátjukkal is a Hungarian word. It is the instrumental case of the word "barátjuk," which means "their friend." Therefore, "barátjukkal" translates to "with their friend." This grammatical form is used in sentences to indicate accompaniment or the instrument by which an action is performed.
For example, in a sentence, "They went to the cinema with their friend," the Hungarian equivalent would
The word "barát" itself means "friend." The suffix "-juk" indicates possession by a third-person plural subject