Since 1998, the Casia Corporation Holland have been working on The Definitive TLA Wörterbuch to help people find their way in the ever growing intellectual chaos caused by the late-twentieth century tendency to use as many acronyms in the daily communication as possible. Especially acronyms with a length of three letters have been and continue to be immensly popular, not only in Information and Communication Technology circles, but also among people in more mundane fields of labour; a tendency that has mushroomed with the advent of mobile communication and the combined growing popularity of Short Message Services.
At present, there are 4895 (3244 distinct) TLA's in the database.
Please click on a bar in the diagram that is displayed below, or enter a search-string.
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| P | ||
| PAA | Pan American Airlines | |
| Paranoid Abusive Authority (American) | ||
| PAB | Personal Address Book | |
| PAC | Pan African Congress | |
| Plaatsingsadviescommissie | ||
| political action committee | ||
| PAD | Photo A Day | |
| Psychologische Adviesdienst | ||
| PAE | Physical Adress Extension | |
| PAG | Présence et Action des Gaullisme | |
| PAK | Panzer Abwehr Kanone | |
| Progressief Akkoord | ||
| Provinciale Advies Kommissie | ||
| PAL | Permissive Action Link | |
| persoonlijk assistent voor leraren | ||
| Phase Alteration Line | ||
| Phillipine Airlines | ||
| Programmable Array Logic | ||
| PAM | Particle Accelerator Mishap | |
| Politieke Aandelen Markt | ||
| PAN | Partido de Acción Nacional (Mexico) | |
| Peroxyacetylnitraat | ||
| PAO | Postacademisch Onderwijs | |
| PAP | Papanicolaou | |
| Particulier à Particulier | ||
| PAR | Perimeter Acquisition Radar | |
| Positive Acknowledgment with Re-transmission | ||
| PAS | Para-aminosalicylzuur | |
| Plaatselijk Arbeids Secretariaat | ||
| Portable Antiquities Scheme | ||
| PAU | Pan American Union | |
| PAV | Perifeer Arteriële Vaatziekte | |
| PAW | Pompous Ass Words | |
| Preventief Afgeschoten Worden | ||
| PAX | Private Automatic Exchange | |
| PBA | Perfect Binary Array | |
| PBB | Polybroombifenylen | |
| PBC | Pieter Baan Centrum | |
| Proof By Contradiction | ||
| Provinciale Bibliotheek Centrale | ||
| PBF | Prins Bernhard Fonds | |
| PBI | Project Beleidsontwikkeling Internaatsvormingswerk | |
| PBM | Portable Bitmap | |
| PBO | Permanent Beat Officer | |
| Publiekrechtelijke Bedrijfsorganisatie | ||
| PBT | Platform Béta Techniek | |
| PBX | Private Branch Exchange | |
| PCA | Permanent Court of Arbitration | |
| Polycyclische aromaat | ||
| Power Calibration Area | ||
| PCB | Parti Communiste Belge | |
| Polychloorbifenyl | ||
| Printed Circuit Board | ||
| Program Control Block | ||
| Protestants Christelijke Bond | ||
| Protestantse Coöperatieve Begrafenisonderneming | ||
| PCC | Parti Communista de Cuba | |
| PC Consument | ||
| Prins Claus Conservatorium | ||
| Protestants Christelijk Centrum | ||
| PCE | Partido Comunista Español | |
| PCF | Parti Communiste Français | |
| PCG | Pentecostal Church of God | |
| Pentium Compiler Group | ||
| Performance Communications Group | ||
| Performance Contracting Group | ||
| Philippine Coast Guard | ||
| Policy Coordination Group | ||
| Polo en zwemClub Gorinchem | ||
| Professional Contractors Group | ||
| Protein Crystal Growth | ||
| Provinciale Chronisch zieken en Gehandicaptenraad Groningen | ||
| Public Consulting Group | ||
| Publishers Communication Group | ||
| Pull-Cord Generator | ||
| PCI | Partito Comunista Italiano | |
| Peripheral Component Interconnect | ||
| PCL | Postcodeloterij | |
| Printer Control Language | ||
| PCM | Perscombinatie Meulenhoff & Co | |
| Personal Computer Magazine | ||
| Pulse-Code Modulatie | ||
| PCN | Post Christi Natum | |
| PCO | Protestants Christelijke Onderwijsvakorganisatie | |
| Public Carriage Officer | ||
| PCP | Partido Communista Português | |
| Phencyclidine | ||
| PCR | Postchèquerekening | |
| PCS | Personal Communication Services | |
| Posterboy Creationist Stupidity | ||
| Posterboy for Creationist Stupidity | ||
| PCZ | Protestants Christelijke [vereniging tot bevordering van sociale en pedagogische] Zorg | |
| PDA | Personal Digital Assistent | |
| PDB | Pedagogisch Didactisch Bekwaamheid | |
| PDC | Personal Digital Communications | |
| Prada Death Camp | ||
| PDD | Pre-Dinner Dip | |
| PDE | Plug-in Development Environment | |
| Processing Development Environment | ||
| Portable Document Format | ||
| Postscript Description Format | ||
| PDL | Project description language | |
| PDM | Persistent Domain Model | |
| Philips Dupont Magnetics | ||
| Product Data Management | ||
| PDQ | Pretty Damn Quick | |
| PDS | Persistent Data Storage | |
| Please Don't Shoot | ||
| Prikkelbare Darm Syndroom | ||
| PDT | Pacific Daylight Time | |
| PDV | Productschap Diervoeder | |
| PEC | Parlementaire Enquete Comissie | |
| PEK | Poly-Evolver Keys | |
| PEM | Programming Environment Meeting | |
| PES | Penis Enlargement Surgery | |
| PET | Poly Ethylene Terephthalate | |
| PFA | Pretty Fucking Amazing | |
| PFC | Personal filing cabinet | |
| PFD | Personal Floatation Device | |
| PFK | Programmable function keys | |
| PFL | Positive Feedback Loop | |
| PFM | Printer Font Metrics | |
| PFO | Patient Falling Over | |
| PGD | Productschap Gedistilleerde Dranken | |
| PGE | Philip Glass Ensemble | |
| Pizza Graph Effect | ||
| PGI | Piek Gas Installatie | |
| PGM | Portable Graymap | |
| PGN | Portable game notation | |
| PGP | Pretty Good Privacy | |
| PGT | Patient Got Thumped | |
| PHD | Philosophiae Doctor | |
| PHK | Prins Hendrik Kade | |
| PHM | Pretty Hate Machine | |
| PHP | Parents Helping Parents | |
| Personal Home Page | ||
| PHP Hypertext Preprocessor | ||
| PIA | Pakistan International Airlines | |
| PIC | Particle-In-Cell | |
| Partner In Crime | ||
| Programmable Intelligent Computer | ||
| PID | Pelvic inflammatory disease | |
| Process IDentification | ||
| Project initiation document | ||
| PIF | Program Information File | |
| PIK | Paid In Kind | |
| PIN | Personal Identification Number | |
| Persoonlijk Identificatie Nummer | ||
| Postal Index Number | ||
| progressive inflammatory neuropathy | ||
| prostatic intraepithelial neoplasia | ||
| PIO | Programmed I/O | |
| PIP | Picture In Picture | |
| Poly Implant Prothese | ||
| PIR | Public Interest Registry | |
| PIS | Porno In SVN | |
| PIV | Particle Image Velocimetry | |
| Peak Inverse Voltage | ||
| Personal Identity Verification | ||
| Physical Inventory Verification | ||
| Pig Immunodeficiency Virus | ||
| Pinnacle Internet Viewer | ||
| Plena Ilustrita Vortaro | ||
| Post Implementation Verification | ||
| Post Indicator Valve | ||
| Powered Industrial Vehicle | ||
| PKI | Partai Komunis Indonesia | |
| Programmadirectie Kennis en Innovatie | ||
| Public Key Infrastructure | ||
| PKK | Partiya Karkeren Kurdistan | |
| PKV | Pluimvee en Konijnfokvereniging | |
| Prijs Karel Verleye | ||
| Private Krankenversicherung | ||
| Project KustVakken | ||
| PKZ | Prehistorische Kanker Zooi | |
| PLA | Port of London Authority | |
| Programmable Logic Array | ||
| PLC | Programmable Logic Controller | |
| Programmable Logic Controller | ||
| PLD | Pre Lunch Dip | |
| Programmable Logic Device | ||
| PLG | Predestined Landing Ground | |
| PLL | Phase Locked Loop | |
| PLM | Paradise Locker Meats | |
| Paris-Lyon-Méditerranée | ||
| Plant Lifecycle Management | ||
| Product Lifecycle Management | ||
| PLO | Palestine Liberation Organisation | |
| PLT | Parkstad Limburg Theaters | |
| PLU | Price Look-Up | |
| Primary Logic Unit | ||
| PMA | Physical Memory Address | |
| PMC | Perfecte Mensen Club | |
| PMD | Polen Moeten Dood | |
| PMG | Parliamentary Monitoring Group | |
| Pat Metheny Group | ||
| Private Media Group | ||
| PMN | Pruts MoederNeuker | |
| PMO | Parkeermeteroorlog | |
| PMP | Parallel Marker Pass | |
| Parsed Marker Particles | ||
| Peed My Pants | ||
| PMQ | Prime Minister's Question | |
| Private Maried Quarters | ||
| PMS | Pantone Matching System | |
| Parked Motorcycle Syndrome | ||
| PNC | Police National Computer | |
| PNG | Portable Network Graphic | |
| Promoteam Natuurkundig Gezelschap | ||
| PNM | Portable aNyMap | |
| PNN | Promovendi Netwerk Nederland | |
| PNO | Potentiële Neuk Objecten | |
| Prima Neuk Objecten | ||
| PNP | Plug aNd Play | |
| PNT | Position Navigation and Timing | |
| PNW | Pacific North West | |
| POA | Port of Amsterdam | |
| POB | Per Ontvangen Bericht | |
| Praktijk Opleidings Boek | ||
| POC | Proof of Concept | |
| POD | Plain Old Documentation | |
| POI | Point Of Interaction | |
| POM | Project Object Model | |
| PON | Passive Optical Network | |
| POP | Persistent Organic Pollutants | |
| Point Of Presence | ||
| Post Office Protocol | ||
| POS | Partition Of Sums | |
| Piece Of Shit | ||
| POV | Persistence Of Vision | |
| Point Of View | ||
| POW | Prisoner Of War | |
| PPA | Past Participle Adjective | |
| Per Particle Attributes | ||
| Persoonlijke Profiel Analyse | ||
| PPC | Pair Programming Chair | |
| Pelgrim's Pride Company | ||
| Plutonium Production Process | ||
| PPD | para-phenylenediamine | |
| Post Parting Depression | ||
| Postscript Printer Description | ||
| Publiek Private Discussie: | ||
| PPE | Permanent Penile Enlargement | |
| PPG | Points Per Gallon | |
| PPI | Pixels Per Inch | |
| PPM | Parts Per Million | |
| Portable PixMap | ||
| Pre Production Meeting | ||
| PPN | Pre-assigned Port Numbers | |
| PPP | Pakistan Peoples Party | |
| Patricia 'Pubergrrl' Paay | ||
| Peace, Pasta and Pirates | ||
| Per Pay Period | ||
| Personal Pension Plan | ||
| Piss Poor Planning | ||
| Plan Puebla Panamá | ||
| Plutonium Production Process | ||
| Point-to-Point Protocol | ||
| Public Private Partnership | ||
| Purchasing Power Parity | ||
| PPQ | Pulses Per Quarter | |
| PPR | Politieke Partij Radicalen | |
| PPS | Particles Per Second | |
| Publieke en Private Samenwerking | ||
| PPT | PowerPoinT | |
| PPU | Physics Processing Unit | |
| PRB | Persoonsgebonden ReïntegratieBudget | |
| PRC | Pleitgenootschap Rota Carolina | |
| PRF | Pixel Run Format | |
| Primary Risk Factor | ||
| PRI | Primary Rate Interface | |
| PRL | Physical Review Letters | |
| PRM | Partner Relationship Management | |
| PRO | Public Record Office | |
| PRS | Payload Retention System | |
| Personal Radio Service | ||
| Personal Reader System | ||
| Poverty Reduction System | ||
| Precision Ranging System | ||
| Primary Reference Source | ||
| PRV | Peter R. de Vries | |
| PSA | Professional Services Automation | |
| PSB | Pet Shop Boys | |
| Program Specification Block | ||
| PSD | Partidul Social Democrat | |
| Pennsylvania School for the Deaf | ||
| Pesticides Safety Directorate | ||
| PhotoShop Design | ||
| Protein Sequence Database | ||
| PSE | Pale Soft Exudative | |
| PSI | Per Square Inch | |
| PSP | Pacifistisch Socialistische Partij | |
| PaintShop Pro | ||
| Playstation Portable | ||
| PSS | Packet Switched Service | |
| PST | Pacific Standard Time | |
| Pocket Survival Tool | ||
| PSU | Police Support Unit | |
| Power Supply Unit | ||
| PSV | Philips Sportvereniging | |
| PTC | Parents Television Council | |
| PTI | Physical Training Instructor | |
| PTO | Patent and Trademark Office | |
| please turn over | ||
| PTP | Picture Transfer Protocol | |
| Point-to-Point | ||
| Profitable To Promise | ||
| PTT | Post Telefoon Telegraaf | |
| PUI | Perceptual User Interface | |
| PUP | PARC Universal Packet protocol | |
| Princeton University Press | ||
| Progressive Unionist Party | ||
| PVA | Plan Van Aanpak | |
| PVC | Polyvinylchloride | |
| PVL | Planbureau Voor de Leefomgeving | |
| PVM | Priemgetal Voor Mannen | |
| PVP | Path Vector Protocol | |
| PVR | Personal Video Recorder | |
| PVV | Partij voor de Vrijheid | |
| Partij Vreemde Vogels | ||
| PWA | Prins Willem Alexander | |
| PWC | PriceWaterhouseCoopers | |
| PWD | Programmed Warhead Detonation | |
| PWM | Pulse-Width Modulation | |
| PWN | Provinciaal Waterleidingbedrijf van Noord-Holland | |
| Puur Water en Natuur | ||
| PWS | Prince William Sound | |
| PWT | Pacific War Time | |
| PXR | Pixar | |
| PYT | Pretty Young Thing | |
