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 finish a romantic relationship with (someone).
To complain to (someone) extensively; to (figuratively) transfer one's problems to (someone) by complaining to them.