What is the Greek word for with?

There isn't one single Greek word that translates perfectly to the English "with" because the meaning of "with" depends heavily on context. Greek uses different words depending on whether you mean:

* Accompaniment: μετά (meta) - this is often the closest translation and means "with," "after," or "along with."

* Means or instrument: με (me) - a preposition meaning "with" in the sense of using something as a tool or means.

* Possession or accompaniment (as an attribute): This would often be expressed using the genitive case (e.g., a man *with* a beard – άνδρας (andras - man) γενειάδος (geneiados - of a beard)). No single word "with" is used here, the grammatical case shows the relationship.

* Simultaneity: σύγχρονα (syγχrona) - meaning "simultaneously" or "at the same time." This implies "with," but not in a sense of accompaniment.

So, the best Greek translation of "with" will always depend on the specific sentence. You need to provide the sentence to get an accurate translation.