Related Clues:

• Accumulates
• Increases
• Grows
• Amasses
• Makes a stack
• Saves
• Adds to, as a bar bill
• Accumulates, as a tab
• More than fills the inbox
• Are you who hurries to the top with puns?
• Incurs
• Forms a big stack
• Accumulates trouble below and on high
• Adds to, as a tab