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

Encyclopedia: PPS

• uselessness
• Usenet
• user
• user interface
• user-friendliness
• user-friendly
• username
• Ushas
• usher
• usher in
• usher out
• usherette
• ushering in
• using
• using up
• Uskub
• USMC
• USN
• Usnea
• Usnea barbata
• Usneaceae
• Usonian
• USP
• USPS
• usquebaugh