Chain store and Discount store

Chain store noun - One of a chain of retail stores under the same management and selling the same merchandise.

Discount store and chain store are semantically related in retail store topic. In some cases you can use "Discount store" instead a noun phrase "Chain store", when it comes to topics like business establishment that sells goods.

Discount store noun - A sales outlet offering goods at a discounted price.

Chain store and discount store are semantically related in retail store topic. You can use "Chain store" instead a noun phrase "Discount store", if it concerns topics such as business establishment that sells goods.