What does taobao mean in English?

"Taobao" doesn't have a direct English translation. It's a Chinese word that roughly means "treasure hunt" or "searching for treasures."

However, Taobao is most well-known as the name of a massive online marketplace in China, similar to eBay or Amazon. So, in the context of e-commerce, "Taobao" is often simply referred to as "Taobao", a proper noun.