1. Post Postscript (a postscript following the first postscript) 
2. [Brit] Parliamentary Private Secretary, Principal Private Secretary

Encyclopedia: PPS

• cash in hand
• cash in on
• cash in one's chips
• cash machine
• cash on delivery
• cash out
• cash price
• cash register
• cash surrender value
• cash-and-carry
• cash-strapped
• cashable
• cashback
• cashbook
• cashbox
• cashcard
• cashed
• cashew
• cashew nut
• cashew tree
• cashier
• cashier's check
• cashier's cheque
• cashless
• cashmere