What is the greek word for environment?

There isn't one single Greek word that perfectly translates to "environment" in its modern, comprehensive sense. However, depending on the specific aspect of the environment you want to convey, you could use several options:

General environment:

* Περιβάλλον (perivallon): This is the most common and widely used word for "environment" in modern Greek. It literally means "surrounding" and encompasses the physical and social surroundings.

* Φύση (fysi): This translates to "nature" and can be used to refer to the natural environment.

Specific aspects:

* Οικοσύστημα (oikósýstema): This means "ecosystem" and refers to the interconnectedness of living organisms and their physical environment.

* Βιοποικιλότητα (biopoikilótita): This translates to "biodiversity" and refers to the variety of life within a given environment.

* Κλίμα (klima): This means "climate" and refers to the long-term weather patterns of a region.

The best word to use depends on the context and what aspect of the environment you want to emphasize.