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Your abbreviation search returned 186 meanings
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| Category Filters > | All definitions (186) |
Information Technology (33) |
Military & Government (33) |
Science & Medicine (66) |
Organizations, Schools, etc. (27) |
Business & Finance (34) |
Slang, Chat & Pop culture (9) |
| sort results: alphabetical | rank ? | |||
| Rank | Abbr. | Meaning | |
|---|---|---|---|
| ****** | PI | Product Information | |
| ****** | PI | Private Investigations (movie) | |
| ****** | PI | Private Investigator | |
| ****** | PI | Process Integration | |
| ****** | PI | Principal Investigator | |
| ****** | PI | Public Information | |
| ****** | PI | Program Improvement | |
| ****** | PI | Process Improvement | |
| ****** | PI | Phosphate (Inorganic) | |
| ****** | PI | Protease Inhibitor | |
| ****** | PI | Professional Indemnity (insurance coverage) | |
| ****** | PI | Plant Industry (Commonwealth Scientific and Industrial Research Organisation; Australia) | |
| ****** | PI | Package Insert (medications) | |
| ****** | PI | Program Information | |
| ****** | PI | Piauí (Brazilian state) | |
| ****** | PI | Post Intelligencer (newspaper, Seattle, Washington) | |
| ****** | PI | Processing Instruction | |
| ****** | PI | Punto Informatico | |
| ****** | PI | Paging (assembly language ASM51 assembler control) | |
| ****** | PI | Privacy International (human rights group) | |
| ****** | PI | Pulse Induction | |
| ***** | PI | Program Instructions | |
| ***** | PI | Presque Isle (Michigan) | |
| ***** | PI | Propidium Iodide | |
| ***** | PI | Proportional-Integral (controller) | |
| ***** | pI | Isoelectric Point (chemistry) | |
| ***** | PI | Process Industries | |
| ***** | PI | Predictive Index | |
| ***** | PI | Propriedade Intelectual (Intellectual Property, Brazil) | |
| ***** | PI | Pacific Institute | |
| ***** | PI | Blood Clotting | |
| ***** | PI | Parris Island | |
| ***** | PI | Preliminary Injunction | |
| ***** | PI | Power Integrations | |
| ***** | PI | Pass Interference (football) | |
| ***** | PI | Pandemic Influenza | |
| ***** | PI | Private Idaho | |
| ***** | PI | Praktische Informatik (German: Applied Informatics) | |
| ***** | PI | Primary Immunodeficiency | |
| ***** | PI | Paedagogisches Institut (Vienna, Austria) | |
| ***** | PI | Program Integrity | |
| ***** | PI | Process & Instrumentation | |
| ***** | PI | Philippine Islands (slang) | |
| ***** | PI | Parallel Interface | |
| ***** | PI | Position Indicator | |
| ***** | PI | Public Intoxication (law enforcement) | |
| ***** | PI | Pulsatility Index | |
| ***** | PI | Product Integration | |
| ***** | PI | Power Interface | |
| ***** | PI | Product Improvement | |
| ***** | PI | Profitability Index | |
| **** | PI | Program Index | |
| **** | PI | Plouffe's Inverter | |
| **** | PI | Postinjection | |
| **** | PI | Pressure Indicator (industrial control description) | |
| **** | PI | Pacific Internet (Internet Service Provider) | |
| **** | PI | Post Inoculation | |
| **** | PI | Precision Instrument | |
| **** | PI | Productivity Index (oil and gas well performance) | |
| **** | PI | Paranormal Investigator | |
| **** | PI | Provider Independent (IP address space assigned by IANA) | |
| **** | PI | Program Identification | |
| **** | PI | Proforma Invoice | |
| **** | PI | Programmed Instruction | |
| **** | PI | Proyectos Industriales | |
| **** | PI | Project Identification (number) | |
| **** | PI | Prediction Interval | |
| **** | PI | Packet Interface | |
| **** | PI | Partner Institution | |
| **** | PI | Productivity Increase | |
| **** | PI | Page Impression (Internet advertising) | |
| **** | PI | Product Integrity | |
| **** | PI | Priority Inheritance | |
| **** | PI | Protocol Interpreter | |
| **** | PI | Paper Insulated | |
| **** | PI | International Protocol | |
| **** | PI | Prison Industry | |
| **** | PI | Program Interruption | |
| **** | PI | Paranoid Ideation | |
| **** | PI | Panicle Initiation | |
| **** | PI | Phosphorus Index | |
| **** | PI | Par Intérim (French: Deputizing) | |
| *** | PI | Parameter Identifier (ITU-T) | |
| *** | PI | Istiqlal Party (Independence Party, Morocco) | |
| *** | PI | Particular Integral | |
| *** | PI | Patente de Invenção (Patent, Brazil) | |
| *** | PI | Prime Implicant | |
| *** | PI | Primary Injection | |
| *** | PI | Projets Individuels | |
| *** | PI | Portable Interceptors | |
| *** | PI | Primary Investigations | |
| *** | PI | Pusat Informasi (Indonesian: Information Center) | |
| *** | PI | Précompte Immobilier (French: tax on real estate) | |
| *** | PI | Parents for Inclusion | |
| *** | PI | Price Integrity | |
| *** | PI | Paradigm Infinitum (Singapore) | |
| *** | PI | Program Isolation (IBM) | |
| *** | PI | Physicist Interface | |
| *** | PI | Praendex Incorporated (Wellesley, MA) | |
| *** | PI | Principal Insured | |
| *** | PI | PrintImage International | |
| *** | PI | Parameter Indicator | |
| *** | PI | Prospective Internationale | |
| *** | PI | Perceptually Impaired | |
| ** | PI | Pulse Inverter | |
| ** | PI | Perception Immédiate (French) | |
| ** | PI | Parent Initial | |
| ** | PI | Projector Infantry | |
| ** | PI | Psykoterapiinstitut (Stockholm, Sweden) | |
| ** | PI | Paducah & Illinois Railroad | |
| ** | PI | Procurement Instruction | |
| ** | PI | Page Interleaving | |
| ** | PI | Psicología Integrada (Portugese) | |
| ** | PI | Professional Informant | |
| ** | Pi | Ionized Phosphorus | |
| * | PI | Proto-I.jo | |
| * | PI | Pampers Institute (UK) | |
| * | PI | Passive Intercept | |
| * | PI | Probationary Instructor | |
| * | PI | Profil Infirmier | |
| * | PI | Pallidum Internum | |
| * | pi | [not an acronym] name for Greek symbol representing the ratio of the circumference of a circle to its diameter; approximately 3.1416 | |
| * | PI | Passes Intercepted (soccer) | |
| * | PI | Paperi-Insinöörit (Finnish: Paper Engineers) | |
| * | PI | Perforated Initials (philately) | |
| * | PI | Performance Improvement | |
| * | PI | Performance Index | |
| * | PI | Performance Indicator | |
| * | PI | Performance Insight (Oracle) | |
| * | PI | Perimeter Institute for Theoretical Physics | |
| * | PI | Periodic Inspection | |
| * | PI | Peripheral Iridotomy | |
| * | PI | Perlite Institute (Staten Island, NY) | |
| * | PI | Perpetual Inventory | |
| * | PI | Persistently Infected | |
| * | PI | Personal Identifier | |
| * | PI | Personal Injury (legal) | |
| * | PI | Personal Inspection | |
| * | PI | Personal Investigator (less common) | |
| * | PI | Petroleum Institute | |
| * | PI | Phase I (clinical studies) | |
| * | PI | Philadelphia Inquirer (newspaper) | |
| * | PI | Paternity Index | |
| * | PI | Payload Integrator | |
| * | PI | PCNA (Proliferating Cell Nuclear Antigen) Labeling Index | |
| * | PI | Pearl Islands (Hawaii) | |
| * | PI | Penile Implant | |
| * | PI | Pentium I (Intel) | |
| * | PI | Per Inch | |
| * | PI | Per Inquiry | |
| * | PI | Photo Interpretation | |
| * | PI | Photo Interpreter | |
| * | PI | PhotoImpact (digital imaging software) | |
| * | PI | Physical Inventory | |
| * | PI | Physically Impaired | |
| * | PI | Physician Information | |
| * | PI | Physics International | |
| * | PI | Physik Instrumente | |
| * | PI | Pinellas (plant; Florida) | |
| * | PI | Pinneberg (auto license plate) | |
| * | PI | Pisa (Tuscany, Italy) | |
| * | PI | Planet Internet | |
| * | PI | Plant Information (real-time software products such as SCADA) | |
| * | PI | Plant Integrity | |
| * | PI | Plaque Index (oral hygiene) | |
| * | PI | Plasticity Index | |
| * | PI | Platform Initialization (Specification) | |
| * | PI | Please Inquire | |
| * | PI | Pleasure Island (Disney World) | |
| * | PI | Plug In | |
| * | PI | Point Initiating | |
| * | PI | Point of Impact | |
| * | PI | Point of Inflection (engineering) | |
| * | PI | Point of Intersection | |
| * | PI | Poison Ivy | |
| * | PI | Police Interceptor | |
| * | PI | Policy and International Affairs | |
| * | PI | Policy Issuance (insurance) | |
| * | PI | Politically Incorrect | |
| * | PI | Polyisocyanurate (rigid foam contruction material) | |
| * | PI | Polynomial Identity (mathematics) | |
| * | PI | Ponderal Index | |
| * | PI | Popcorn Institute (Chicago, IL) | |
| * | PI | Population Institute | |
| * | PI | Purchasing Instruction | |
| * | PI | Pursuit Inc. | |
| Note: We have 147 other definitions for PI in our Acronym Attic | |||
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