To advance in rank, position, or honor. She was promoted to manager after only two years with the company.
To contribute to the growth or progress of something. The new policy is designed to promote economic development in the region.
To publicize or advertise a product, event, or idea. The company hired a marketing firm to promote their new line of products.
To encourage or support the acceptance or recognition of something. The organization works to promote awareness about environmental issues.
In chess, to transform a pawn that has reached the eighth (or first) rank into a queen, rook, bishop, or knight. With careful calculation, she promoted her pawn to a queen and delivered checkmate two moves later.