Chain store and Convenience store

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

Convenience store and chain store are semantically related. in business establishment that sells goods topic. In some cases you can use "Convenience store" instead a noun phrase "Chain store".

Convenience store noun - A store selling a limited variety of food and pharmaceutical items; open long hours for the convenience of customers.

Chain store and convenience store are semantically related. You can use "Chain store" instead a noun phrase "Convenience store".