* ἐν (en): This is the most common preposition and translates to "in," "on," "at," "among," or "within," depending on the context. It's used for location, time, and means.
* εἰς (eis): This preposition means "into" or "to" and indicates movement *into* a place.
* ἀνά (ana): This preposition can mean "up," "upon," "throughout," or "among," sometimes implying "in" a distributive sense.
* μέσος (mesos): This adjective means "middle" and can be used with a preposition to indicate "in the middle of."
To give you the most accurate translation, you need to provide the sentence or phrase where you'd like to use "in."