promotion
in chess, the mandatory immediate replacement of a pawn reaching its 8th rank by the player's choice of a queen, knight, rook, or bishop of the same color
en-US/pɹəˈmoʊʃən/
en-GB/pɹəˈməʊʃn/
in chess, the mandatory immediate replacement of a pawn reaching its 8th rank by the player's choice of a queen, knight, rook, or bishop of the same color