This is the 2097th most frequent Japanese word.
売り
"売り" means "sale" or "selling."
Here, "売り" is part of the verb "売っています," which means "to sell" in the context of a shop offering goods for sale.
この店はおいしいスイーツを売っています。
This shop sells delicious sweets.
In this instance, "売り" represents "selling point," indicating a characteristic aimed at attracting customers.
そのカフェは静かな雰囲気を売りにしています。
That cafe promotes its quiet ambiance as a selling point.
Here, "売り" is part of the expression "売りに出します," meaning "to offer for sale" in the context of placing a product on the market.