Grocery store and Shopping mall

Grocery store noun - A marketplace where groceries are sold.

Shopping mall and grocery store are semantically related In some cases you can use "Shopping mall" instead a noun phrase "Grocery store".

Shopping mall noun - Mercantile establishment consisting of a carefully landscaped complex of shops representing leading merchandisers; usually includes restaurants and a convenient parking area; a modern version of the traditional marketplace.

Grocery store and shopping mall are semantically related in place topic. You can use "Grocery store" instead a noun phrase "Shopping mall".