This is the 11555th most frequent Russian word.
друге
The word "друге" does not exist in Russian in standard usage. You might mean "друг" (friend) or "друге" in another context or language.
The phrase 'друг с другом' uses the word 'друг' in an idiomatic expression meaning 'each other.'
Мы говорим друг с другом каждый день.
We talk to each other every day.
The word 'друга' here refers to 'friend' in the accusative case, used for direct objects in the sentence.
Я встретил друга на улице.
I met my friend on the street.
The word 'друг' is in its nominative case, indicating the subject of the sentence.