This is the 57th most frequent Dutch word.
waren
"Waren" in Dutch means "goods" or "products."
In this sentence, 'waren' functions as the past plural form of the verb 'zijn' (to be), indicating that the products were expensive in the past.
De producten in de winkels waren duur.
The products in the stores were expensive.
In this sentence, 'waren' is used as a plural noun meaning 'goods', referring to items being sold.
Op de markt boden ze verschillende waren aan.
At the market, they offered various goods.
Here, 'waren' is used twice: firstly, referring to 'goods' as a noun, and secondly, as the plural past form of 'to be' describing the quality.