What is the Greek word for in English?

There isn't one single Greek word that perfectly translates to "in" in English. The best translation depends on the context and the specific meaning you want to convey. Here are some options:

For location:

* εν (en): This is the most common preposition for "in" and is used for both physical and abstract locations. For example, "εν τω σπιτι" (en to spiti) means "in the house".

* εις (eis): This preposition also means "in", but it often implies movement into a location. For example, "εμπήκε εις το δωμάτιο" (empike eis to domatio) means "he entered the room".

For time:

* εν (en): This preposition is also used for "in" when referring to time. For example, "εν τω φθινόπωρο" (en to fthinoporo) means "in the autumn".

For other meanings:

* με (me): This preposition can be used for "in" when referring to something being part of something else. For example, "με τον καιρό" (me ton kairo) means "with the weather", or literally "in the weather".

* ως (os): This preposition means "as" or "in the role of", but it can also be used for "in" in certain contexts. For example, "ως φίλος" (os filos) means "as a friend", or literally "in the role of a friend".

The best translation depends on the context. If you provide more information about the specific situation you are interested in, I can give you a more precise translation.