Alcoa is a five-letter acronym for the Aluminum Company of America, which is one of the largest producers of aluminum in the world. It is a big name in metal, as it has been a major player in the industry since its founding in 1888. Alcoa has been involved in many aspects of the metal industry, from mining and refining to manufacturing and distribution. Its products are used in a variety of industries, including aerospace, automotive, construction, and consumer goods.