This is the 12482nd most frequent Polish word.
najdroższe
"Najdroższe" means "the most expensive" or "dearest" in English.
Najdroższą is used here metaphorically to express high value or affection, not actual cost.
Moja mama jest najdroższą osobą w moim życiu.
My mom is the dearest person in my life.
Najdroższe is used here to describe a specific wine with the highest price among options.
Planuję kupić najdroższe wino na dzisiejszą kolację.
I plan to buy the most expensive wine for tonight's dinner.
Najdroższe is used here as an adjective to describe the degree of expense of items, indicating they are the priciest.