PI
Hired sleuth, abbreviated
PI stands for private investigator, a detective for hire: She hired a PI to find her birth mother.
In research, PI means principal investigator—the lead scientist on a project.
PI is also the postal-style abbreviation for Pacific Islands. (Lowercase pi is the mathematical constant.)
detective
One who examines evidence
- gumshoeInformal term for detective
- sleuthPrivate investigator
- noirHard-boiled film genre
- shamusSlang term for sleuth
dick · stakeout · surveillance · undercover · tail · case · client · hired
abbreviation
Regarding civic governance
- incorrectNot accurate or true
- PhilippineOf Manila's country
- IslandsNamed water-bound lands
investigator
One who examines evidence
shamus · dick · stakeout · surveillance · undercover · tail · case · client · hired · license
politically
Regarding civic governance
- incorrectNot accurate or true
- PhilippineOf Manila's country
- IslandsNamed water-bound lands
principal
Chief school administrator
- investigatorOne who examines evidence
- grantBestow or award money
- researchSystematic fact-finding effort
laboratory · academic · study · funding · paperwork · scientist · lead
- mysteryclue, detective, suspect, clues, sleuth
- Detectivesdetective, sleuth, investigator, private eye, gumshoe
- investigatorsdetective, investigator, inspector, sleuth, gumshoe
- chasepursuer, chaser, manhunter, hunter, tracker
- Private Investigatorsprivate detective, detective agency, gumshoe, shamus, dick
- Phospholipidsphospholipids, lecithin, glycerophospholipid, PC, PE
official authority status
Law enforcement agent
- piña coladaRum-based tropical frozen drink
- Life of PiSurvival tale with tiger
- pièce de résistanceOutstanding item in collection
- Raspberry PiAffordable miniature programmable computer
- piñata stickTool for breaking piñatas
- Magnum PIClassic Hawaiian detective series