Last updated: Sept 2026
This is your ultimate comprehensive A-to-Z reference guide to 100+ of the most common full forms and abbreviations used in everyday life, work, technology, and communication.
Complete A-to-Z Full Forms Reference
| A-Z | Abbreviation | Full Form | Category |
|---|---|---|---|
| A | AI | Artificial Intelligence | Technology |
| API | Application Programming Interface | Tech/Web | |
| ATP | Adenosine Triphosphate | Science/Biology | |
| ATM | Automated Teller Machine | Banking | |
| ASAP | As Soon As Possible | Communication | |
| ABS | Anti-Lock Braking System | Vehicles | |
| ATV | All-Terrain Vehicle | Vehicles | |
| B | BCCI | Board of Control for Cricket in India | Sports |
| BP | Blood Pressure | Medical | |
| BPO | Business Process Outsourcing | Business | |
| BRB | Be Right Back | Chat/Internet | |
| BTW | By The Way | Communication | |
| C | CBSE | Central Board of Secondary Education | Education |
| CEO | Chief Executive Officer | Business | |
| CNG | Compressed Natural Gas | Vehicles | |
| CTC | Cost to Company | Career | |
| CV | Curriculum Vitae | Career | |
| D | DNA | Deoxyribonucleic Acid | Science/Biology |
| DRDO | Defence Research and Development Organization | Government (India) | |
| DM | Direct Message | Social Media | |
| DIY | Do It Yourself | General | |
| DOB | Date of Birth | Documents | |
| E | ECG | Electrocardiogram | Medical |
| EV | Electric Vehicle | Vehicles | |
| EPL | English Premier League | Sports | |
| ETA | Estimated Time of Arrival | Communication | |
| F | FIFA | International Football Association | Sports |
| FYI | For Your Information | Communication | |
| FPI | Foreign Portfolio Investment | Finance | |
| FD | Fixed Deposit | Banking | |
| G | GATE | Graduate Aptitude Test in Engineering | Education |
| GST | Goods and Services Tax | Finance/Banking | |
| GPU | Graphics Processing Unit | Technology | |
| GMAT | Graduate Management Admission Test | Education | |
| H | HR | Human Resources | Business |
| HTTP | HyperText Transfer Protocol | Internet/Web | |
| HTTPS | HyperText Transfer Protocol Secure | Internet/Web | |
| HTML | HyperText Markup Language | Web/Technology | |
| I | ICC | International Cricket Council | Sports |
| IIT | Indian Institute of Technology | Education (India) | |
| IPL | Indian Premier League | Sports (India) | |
| IOC | International Olympic Committee | Sports | |
| J | JEE | Joint Entrance Examination | Education |
| JK | Just Kidding | Chat/Internet | |
| JSON | JavaScript Object Notation | Technology/Web | |
| JPEG | Joint Photographic Experts Group | Image Format | |
| K | KYC | Know Your Customer | Banking/Documents |
| KM/L | Kilometers per Liter | Vehicles | |
| KB | Kilobyte | Data Storage | |
| KRA | Key Result Area | Business | |
| L | LOL | Laugh Out Loud | Chat/Internet |
| LASER | Light Amplification by Stimulated Emission of Radiation | Science/Technology | |
| LMAO | Laughing My Ass Off | Chat/Internet | |
| LLM | Large Language Model | AI/Technology | |
| M | MBA | Master of Business Administration | Education |
| MNC | Multi-National Company | Business | |
| MRI | Magnetic Resonance Imaging | Medical | |
| ML | Machine Learning | AI/Technology | |
| N | NEET | National Eligibility cum Entrance Test | Education |
| NPA | Non-Performing Asset | Banking/Finance | |
| NIT | National Institute of Technology | Education (India) | |
| NVM | Never Mind | Chat/Internet | |
| O | OMG | Oh My God | Chat/Internet |
| OMR | Optical Mark Recognition | Technology/Education | |
| OTP | One Time Password | Documents/Security | |
| OBD | On-Board Diagnostics | Vehicles | |
| P | PAN | Permanent Account Number | Documents/Tax (India) |
| Portable Document Format | File Format | ||
| PGA | Professional Golfers' Association | Sports | |
| PSI | Pounds per Square Inch | Vehicles/Pressure | |
| Q | QA | Quality Assurance | Business |
| QR | Quick Response Code | Technology | |
| QWERTY | Keyboard Layout | Technology | |
| (Limited Q abbreviations in common use) | |||
| R | RNA | Ribonucleic Acid | Science/Biology |
| RBI | Reserve Bank of India | Government (India) | |
| RAM | Random Access Memory | Technology | |
| RPM | Revolutions Per Minute | Vehicles/Technology | |
| S | SBI | State Bank of India | Banking (India) |
| SSC | Staff Selection Commission | Government/Education (India) | |
| SSD | Solid State Drive | Technology | |
| SMH | Shaking My Head | Chat/Internet | |
| T | TDS | Tax Deducted at Source | Finance/Tax (India) |
| TOEFL | Test of English as a Foreign Language | Education | |
| TAN | Tax Deduction Account Number | Tax/Documents (India) | |
| TTYL | Talk To You Later | Chat/Internet | |
| U | UGC | University Grants Commission | Government/Education (India) |
| UPS | Uninterruptible Power Supply | Technology | |
| UPI | Unified Payments Interface | Finance/Payment (India) | |
| USB | Universal Serial Bus | Technology | |
| V | VPN | Virtual Private Network | Internet/Technology |
| VIN | Vehicle Identification Number | Vehicles | |
| VAT | Value Added Tax | Finance/Tax | |
| VR | Virtual Reality | Technology | |
| W | WiFi | Wireless Fidelity | Internet/Technology |
| WTA | Women's Tennis Association | Sports | |
| WTF | What The F*** | Chat/Internet (Profane) | |
| X | XAT | Xavier Aptitude Test | Education |
| XML | Extensible Markup Language | Web/Technology | |
| Y | YOLO | You Only Live Once | Chat/Internet Slang |
| YW | You're Welcome | Chat/Internet | |
| Z | ZIP | Compression Format | File Format/Technology |
| ZZZ | Sleeping/Boring | Chat/Internet | |
Frequently Asked Questions
Q: How many common abbreviations should I know?
A: Knowing 50-100 common abbreviations covers 90% of everyday usage. This list has you covered for most situations!
Q: Do I need to know all these abbreviations?
A: No — learn the ones relevant to your field. A doctor needs medical terms, an IT worker needs tech terms, etc. This guide is a reference for when you encounter unfamiliar abbreviations.
Q: Are abbreviations always the same across countries?
A: Mostly yes, but some vary. Example: US uses "PSI" (pounds per square inch) for tire pressure; India uses "bar" (metric). International standards help maintain consistency.
Q: What's the best way to remember abbreviations?
A: Use them in context. The more you encounter an abbreviation in real situations (work emails, tech articles, conversations), the better you'll remember it.
Conclusion
This comprehensive A-Z guide covers 100+ common full forms used across technology, business, education, sports, finance, documents, and internet communication. Bookmark this page as your quick-reference guide whenever you encounter an unfamiliar abbreviation!
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