Definition of "PE"

PE

proper noun
usually uncountable, plural PEs
1. Initialism of Prince Edward Island. (A Canadian province)
2. (software) Initialism of Portable Edition (usually used for a software version).
3. (software) Initialism of Preinstallation Environment.
4. (software) Initialism of Portable Executable (executable file format used by modern versions of Microsoft Windows).
  Quotations
  In ELF executables, there aren't a whole lot of code caves (such as in the PE format), so you are not likely to be able to shove more than just a meager amount of shellcode into existing code slots […]
  2016, Ryan "elfmaster" O'Neill, Learning Linux Binary Analysis (page 97)
5. Abbreviation of Pernambuco. (a state of Brazil).
noun
countable and uncountable, plural PEs
1. (business) Initialism of professional engineer.
2. (education) Initialism of physical education.
3. (education) Initialism of preliminary examination.
4. (electronics) Initialism of protective earthing.
5. (organic chemistry) Initialism of polyethylene.
6. (organic chemistry) Initialism of polyether.
7. (pathology) Initialism of pulmonary embolism.
8. (medicine) Initialism of premature ejaculation.
9. (finance) Initialism of private equity.
  Quotations
  The PE industry, which runs funds that can invest outside public markets, has trillions of dollars in assets under management.
  2019 October 3, “Everything Is Private Equity Now”, in Bloomberg Businessweek‎
10. (business, law) Initialism of permanent establishment.