retailing

This term describes the final stage of the distribution channel, where products move from the business to the end consumer. It carries a professional, commercial tone and is typically used in economic or business contexts to describe an industry sector or a specific business model.

Because it is a gerund used as a noun to describe a general business activity or industry, it is treated as an uncountable noun. You would not refer to "retailings" when discussing the act of selling to the public; instead, you would use "retail outlets" or "retail stores" to describe individual physical locations.