PI
See also: Appendix:Variations of "pi"
English
Proper noun
PI
- Abbreviation of Piauí., a state of Brazil.
- Initialism of Prison Industries (the prison-run work program for inmates)
- (colloquial, Philippines) Initialism of Philippine Islands.
- We're going back to the PI for a vacation this summer.
Noun
PI (countable and uncountable, plural PIs)
- (informatics, SGML, XML) Initialism of processing instruction.
- Initialism of partial induction (see AI)
- Initialism of personal injury.
- Initialism of politically incorrect (see PC)
- Initialism of principal investigator (lead researcher on a grant-funded project)
- Initialism of private investigator.
- (biochemistry) Abbreviation of phosphatidylinositol (a phospholipid component of eukaryotic cell membranes, also abbreviated in PtdIns)
- (electronics) Initialism of power integrity.
- (organic chemistry) Initialism of polyimide.
- Abbreviation of prohibited immigrant.
- (fan fiction category) Initialism of pseudoincest.
Anagrams
Portuguese
Proper noun
PI
- Abbreviation of Piauí. (Brazilian state)
Tagalog
Etymology
Initialism of putang ina
Noun
PI
- (vulgar) prostitute mother
- (colloquial, vulgar) a very contemptible person
Categories:
- English lemmas
- English proper nouns
- English uncountable nouns
- English abbreviations
- English initialisms
- English colloquialisms
- Philippine English
- English terms with usage examples
- English nouns
- English countable nouns
- en:Biochemistry
- en:Electronics
- en:Organic compounds
- Portuguese lemmas
- Portuguese proper nouns
- Portuguese abbreviations
- Tagalog lemmas
- Tagalog nouns
- Tagalog vulgarities
- Tagalog colloquialisms
- Tagalog minced oaths