- Philippine peso
Usage notes 
This is a currency code used in the ISO 4217 standard.
Etymology 1 
- (healthcare) Initialism of pseudopseudohypoparathyroidism.
Etymology 2 
Originally an Initialism of personal home page, used to describe a set of tools written by Rasmus Lerdorf in 1995; later inherited by other software built to implement similar functionality, with the new recursive expansion PHP: hypertext preprocessor.
Proper noun