This is the 341st most frequent Greek word.
φως
The Greek word "φως" means "light."
In this sentence, "φως" is used to denote light coming from the sun.
Το φως του ήλιου εισέρχεται μέσα από το παράθυρο.
The sunlight enters through the window.
Here, "φως" refers to artificial light, such as that from a lamp.
Ανάψαμε το φως γιατί είχε σκοτεινιάσει.
We turned on the light because it had become dark.
In this case, "φως" is metaphorically used to mean discovery or revelation.