This is the 12508th most frequent Polish word.
najtaniej
"Najtaniej" means "the cheapest" in English.
The word 'najtaniej' is used as an adverb to denote the condition of the products being sold at the lowest price.
Wybrałem sklep, w którym produkty były najtaniej.
I chose the store where the products were the cheapest.
Here, 'najtaniej' modifies the verb 'costowała' to indicate the minimum expense.
Podróż najtaniej kosztowała, gdy kupiłem bilety wcześniej.
The trip cost the least when I bought tickets early.
'Najtaniej' is used to describe the cost efficiency of purchasing fruits specifically.