Mart/mɑːrt/ Definition 1 of 2Pro Tip 1/3Shopping Context Use 'mart' when referring to casual shopping places, not high-end boutiques. Let's check out the mart for some affordable sneakers. Pro Tip 2/3Physical Location A 'mart' is usually a physical space, unlike online stores. The new mart downtown has a great selection of jeans. Pro Tip 3/3Variety of Goods Marts often offer a wide range of products, more than a specialized store. You can find both kitchenware and electronics at the mart.