To lower, as in condition in life, office, rank, etc., so as to cause pain or hurt feelings; to degrade, to depress, to humble, to humiliate.
To accumulate, to pile up, to increase in stages.
To close up by building.
To strengthen.
In solitaire card games, to place a card over another card of lower value. (e.g., place 5♦ over 4♣)
To erect; to construct.