- PHD
- Piled Higher & Deeper (Miscellaneous » Funnies)** Philosophiae Doctor (Academic & Science » Academic Degrees)* Push Here, Dummy (Miscellaneous » Funnies)* Press Here, Dummy (Academic & Science » Electronics)* Pizza Hut Delivery (Business » Firms)* Post Hole Digger (Business » Products)* Port Hueneme Division (Governmental » Military)* Permanent Head Damage (Miscellaneous » Funnies)* Pretty Hard To Do (Community » Educational)* Piled High And Deep (Miscellaneous » Funnies)* Playa Hatin Degree (Academic & Science » Universities)* Professional Hair Dresser (Business » Positions)* Pizza Home Delivery (Business » General)* Playa Hata's Degree (Miscellaneous » Funnies)* PolyHedra Database (Computing » File Extensions)* Professional Hardware Diagnostics (Computing » General)* Permanently Head Damaged (Internet » Chat)* Patent Application Information Retrieval (Governmental » US Government)* Please Hire Desperate (Miscellaneous » Funnies)* Personal Health Diary (Medical » Physiology)* Patented Hosel Design (Business » General)* Programs For Human Development (Community » Educational)* Poor Hungry And Determined (Miscellaneous » Funnies)* Port Huron and Detroit Railroad Company (Regional » Railroads)* Progress Harmony And Development (Community » Educational)* Power Hungry Dog (Miscellaneous » Funnies)
Abbreviations dictionary. 2012.