PI

Proper noun

 * , a state of Brazil.
 * 1)  the prison-run work program for inmates

Noun

 * 1)  see AI
 * 2)  see PC
 * 3)  lead researcher on a grant-funded project
 * 4)   a phospholipid component of eukaryotic cell membranes, also abbreviated in PtdIns
 * 5)   fuel injection
 * 1)   a phospholipid component of eukaryotic cell membranes, also abbreviated in PtdIns
 * 2)   fuel injection
 * 1)   a phospholipid component of eukaryotic cell membranes, also abbreviated in PtdIns
 * 2)   fuel injection
 * 1)   fuel injection
 * 1)   fuel injection
 * 1)   fuel injection
 * 1)   fuel injection
 * 1)   fuel injection
 * 1)   fuel injection
 * 1)   fuel injection

Proper noun

 * 1)  Brazilian state

Interjection

 * : FU