* What is *this* in Greek? This requires knowing *what "this"* refers to. You'd need to provide the word or concept you want translated.
* What is the word for X in Greek? Again, you'd need to specify X. For example: "What is the word for 'hello' in Greek?"
* What is contained within Greece? This refers to the geography, culture, history, etc., of Greece. The answer would be very broad.
* What is written in Greek? This refers to texts, inscriptions, etc. in the Greek language.
Please clarify your question.