turn a lesser honour into a master by drawing out the opponent's masters.
be changed for a superior chess or checker piece
change a pawn for a king by advancing it to the eighth row, or change a checker piece for a more valuable piece by moving it the row closest to your opponent
To promote pages means to move them from one environment to another using WebIT. The natural order of promotion is from development (where all changes are made) to staging (where validation and review occurs) to production (where the site is available to the public).
What a pawn does that reaches the other side of the board, and assuming the move is legal, then under any circumstances it can promote to a Queen, Rook, Bishop, or Knight on the promoting square. So you can have nine Queens, possibly.