in a general sense, an aptitude or disposition to hold or retain anything.

in Geometry, is the solid contents of any body. Capacity body; also our hollow measures for wine, beer, corn, salt, &c. are called measures of Capacity.

in Law, the ability of a man, or body politic, to give or take lands or other things, or sue actions.

Our law allows the king two capacities; a natural, and a political: in the first, he may purchase lands to him and his heirs; in the second, to him and his successors. The clergy of the church of England have the like.