build up
To erect; to construct.
To close up by building.
to build up a door
To accumulate, to pile up, to increase in stages.
Ever since the secretary left, the letters in my inbox have started to build up.
To strengthen.
They had to build up their fortress to protect against attack.
In solitaire card games, to place a card over another card of lower value. (e.g., place 5♦ over 4♣)
反義詞