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.
To declare something obsolescent; to recommend against a function, technique, command, etc. that still works but has been replaced.
To belittle or express disapproval of.