pile up
v 1: collect or gather; "Journals are accumulating in my office"
[syn: {accumulate}, {cumulate}, {conglomerate}, {gather},
{amass}]
2: arrange into piles or stacks; "She piled up her books in my
living room" [syn: {heap up}, {stack up}]
3: get together [syn: {collect}, {accumulate}, {amass}, {compile},
{hoard}]