Luxurious and rich, 80%+ (4)
I believe the answer is:
plus
This might be a double definition.
'luxurious' is the first definition.
Both the answer and definition are adjectives. Maybe they are linked in a way I don't understand?
'rich 80' is the second definition.
Both the answer and definition are adjectives. Perhaps there's a link between them I don't understand?
'and' acts as a link.
(Other definitions for plus that I've seen before include "Positive and not a negative" , "Together with; advantage" , "asset" , "Furthermore" , "sign of more to come" .)