PI

See also: Appendix:Variations of "pi"

English

Proper noun

PI

1. Abbreviation of Piauí., a state of Brazil.
2. Initialism of Prison Industries (the prison-run work program for inmates)
3. (informatics, SGML, XML) Initialism of Processing Instruction.
4. (colloquial, Philippines) Initialism of the Philippines (PI standing for Philippine Islands)

   We're going back to the PI for a vacation this summer.

Initialism

PI

1. Initialism of partial induction (see AI)
2. Initialism of personal injury.
3. Initialism of politically incorrect (see PC)
4. Initialism of principal investigator (lead researcher on a grant-funded project)
5. Initialism of private investigator.
6. Initialism of pseudoincest.
7. (biochemistry) Abbreviation of phosphatidylinositol (a phospholipid component of eukaryotic cell membranes, also abbreviated in PtdIns)
8. (electronics) Initialism of power integrity.
9. (organic chemistry) Initialism of polyimide.
10. Abbreviation of prohibited immigrant.

Anagrams

• IP, Ip

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Portuguese

Abbreviation

PI

1. Abbreviation of Piauí. (Brazilian state)

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Tagalog

Etymology

Initialism of putang ina

Noun

PI

1. (vulgar) prostitute mother
2. (colloquial, vulgar) a very contemptible person