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 accumulate; to amass.
To be accumulated.
An igneous rock formed by the accumulation of crystals from a magma either by settling or floating.
accumulated, agglomerated, amassed