During the winter break, Keegan and Owen decided to build a snowman. First, they pack enough snow to make two large snowballs. One snowball should be a little smaller than the other. They stack the smaller one on top for the snowman's head. Then, they place two lumps of coal for eyes, a carrot for a nose, and some sticks for arms on the top snowball. Last, they put an old hat on top of its head and an old scarf around its neck.
Which definition of pack is used in this paragraph?