This is the 956th most frequent Greek word.
καμιά
"Καμιά" means "any" or "some" (feminine, singular).
The word "καμιά" here negates the existence of any chance, serving as part of an emphatic negation.
Δεν υπάρχει καμιά πιθανότητα να βρέξει σήμερα.
There is no chance that it will rain today.
The word "καμιά" emphasizes the negativity and impossibility, forming part of a restrictive phrase.
Σε καμιά περίπτωση δεν θα το δεχτώ.
Under no circumstances will I accept it.
Here "καμιά" is used in a general reference to unspecified individuals (friends), indicating possibility.