Full Forms — A to Z List for Students (NCERT, CPU, NEET…)
Free A-to-Z full forms list — 471+ abbreviations across education, computer, science, medical and banking with meanings.
TL;DR: Free A-to-Z full forms list — 471+ abbreviations across education, computer, science, medical and banking with meanings.
Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated
471 abbreviations with their full forms and what they actually mean, across 12 areas — Computer & Tech, Science, Computer, General, Banking & Govt and more. Free, and every one has its own page with the meaning explained.
Computer & Tech (67)
- CPU — Central Processing Unit
- RAM — Random Access Memory
- ROM — Read Only Memory
- SSD — Solid State Drive
- HDD — Hard Disk Drive
- HTTP — HyperText Transfer Protocol
- HTTPS — HyperText Transfer Protocol Secure
- URL — Uniform Resource Locator
- USB — Universal Serial Bus
- PDF — Portable Document Format
- HTML — HyperText Markup Language
- CSS — Cascading Style Sheets
- JS — JavaScript
- AI — Artificial Intelligence
- ML — Machine Learning
- GPS — Global Positioning System
- SIM — Subscriber Identity Module
- OTP — One Time Password
- VPN — Virtual Private Network
- Wi-Fi — Wireless Fidelity
- 4G — Fourth Generation
- 5G — Fifth Generation
- GPU — Graphics Processing Unit
- SoC — System on Chip
- LAN — Local Area Network
- WAN — Wide Area Network
- IP — Internet Protocol
- DNS — Domain Name System
- SQL — Structured Query Language
- OS — Operating System
- GUI — Graphical User Interface
- CD — Compact Disc
- DVD — Digital Versatile Disc
- GB — Gigabyte
- MB — Megabyte
- KB — Kilobyte
- WWW — World Wide Web
- FTP — File Transfer Protocol
- SMTP — Simple Mail Transfer Protocol
- JPEG — Joint Photographic Experts Group
- PNG — Portable Network Graphics
- GIF — Graphics Interchange Format
- API — Application Programming Interface
- IDE — Integrated Development Environment
- QR — Quick Response
- IMEI — International Mobile Equipment Identity
- OTG — On The Go
- NFC — Near Field Communication
- QR — Quick Response Code
- CCTV — Closed Circuit Television
- GPRS — General Packet Radio Service
- LTE — Long Term Evolution
- VoLTE — Voice over Long Term Evolution
- ISP — Internet Service Provider
- CDN — Content Delivery Network
- BIOS — Basic Input Output System
- SMPS — Switched Mode Power Supply
- LCD — Liquid Crystal Display
- OLED — Organic Light Emitting Diode
- HDMI — High Definition Multimedia Interface
7 more computer & tech abbreviations are listed under their letter below.
Science (61)
- DNA — Deoxyribonucleic Acid
- RNA — Ribonucleic Acid
- ATP — Adenosine Triphosphate
- NADH — Nicotinamide Adenine Dinucleotide (reduced)
- CO2 — Carbon Dioxide
- LED — Light Emitting Diode
- LASER — Light Amplification by Stimulated Emission of Radiation
- pH — Potential of Hydrogen
- AC — Alternating Current
- DC — Direct Current
- Ohm — Unit of Electrical Resistance
- Joule — Unit of Energy
- Watt — Unit of Power
- Volt — Unit of Voltage
- Ampere — Unit of Electric Current
- Hertz — Unit of Frequency
- Pascal — Unit of Pressure
- Celsius — Unit of Temperature
- Kelvin — SI Unit of Temperature
- Litre — Unit of Volume
- Gram — Unit of Mass
- Kilometre — Unit of Distance
- CFC — Chlorofluorocarbon
- UV — Ultraviolet
- IR — Infrared
- EMF — Electromotive Force
- SI — International System of Units
- STP — Standard Temperature and Pressure
- NTP — Normal Temperature and Pressure
- kWh — Kilowatt-hour
- BC — Before Christ
- AD — Anno Domini
- CE — Common Era
- ISRO — Indian Space Research Organisation
- DRDO — Defence Research and Development Organisation
- BARC — Bhabha Atomic Research Centre
- CSIR — Council of Scientific and Industrial Research
- DNA — Deoxyribonucleic Acid
- RNA — Ribonucleic Acid
- ATP — Adenosine Triphosphate
- pH — Potential of Hydrogen
- LED — Light Emitting Diode
- LASER — Light Amplification by Stimulated Emission of Radiation
- RADAR — Radio Detection and Ranging
- SONAR — Sound Navigation and Ranging
- UV — Ultraviolet
- IR — Infrared
- EMF — Electromotive Force
- AC — Alternating Current
- DC — Direct Current
- LDR — Light Dependent Resistor
- LCD — Liquid Crystal Display
- OLED — Organic Light-Emitting Diode
- NTP — Normal Temperature and Pressure
- STP — Standard Temperature and Pressure
- GM — Genetically Modified
- PVC — Polyvinyl Chloride
- LPG — Liquefied Petroleum Gas
- CNG — Compressed Natural Gas
- TNT — Trinitrotoluene
1 more science abbreviations are listed under their letter below.
Computer (59)
- GPU — Graphics Processing Unit
- SSD — Solid State Drive
- HDD — Hard Disk Drive
- USB — Universal Serial Bus
- LAN — Local Area Network
- WAN — Wide Area Network
- VPN — Virtual Private Network
- DNS — Domain Name System
- FTP — File Transfer Protocol
- SMTP — Simple Mail Transfer Protocol
- IMAP — Internet Message Access Protocol
- OTP — One-Time Password
- AI — Artificial Intelligence
- ML — Machine Learning
- IoT — Internet of Things
- OS — Operating System
- GUI — Graphical User Interface
- BIOS — Basic Input Output System
- ASCII — American Standard Code for Information Interchange
- GIF — Graphics Interchange Format
- JPEG — Joint Photographic Experts Group
- MP3 — MPEG-1 Audio Layer III
- MP4 — MPEG-4 Part 14
- HTML — Hypertext Markup Language
- CSS — Cascading Style Sheets
- SQL — Structured Query Language
- API — Application Programming Interface
- SDK — Software Development Kit
- HTTP — Hypertext Transfer Protocol
- HTTPS — Hypertext Transfer Protocol Secure
- FTP — File Transfer Protocol
- TCP — Transmission Control Protocol
- IP — Internet Protocol
- MAC — Media Access Control
- ISP — Internet Service Provider
- WiFi — Wireless Fidelity
- GSM — Global System for Mobile Communications
- CDMA — Code Division Multiple Access
- 5G — Fifth Generation
- NFC — Near Field Communication
- GPS — Global Positioning System
- OCR — Optical Character Recognition
- PDF — Portable Document Format
- DOC — Document File Format
- XLS — Excel Spreadsheet Format
- PPT — PowerPoint Presentation Format
- ZIP — ZIP Compression Format
- RAR — Roshal Archive Format
- BMP — Bitmap Image Format
- PNG — Portable Network Graphics
- SVG — Scalable Vector Graphics
- CMOS — Complementary Metal-Oxide-Semiconductor
- VGA — Video Graphics Array
- HDMI — High-Definition Multimedia Interface
- RJ45 — Registered Jack 45
- POP — Post Office Protocol
- IMAP — Internet Message Access Protocol
- OTP — One-Time Password
- IMEI — International Mobile Equipment Identity
General (57)
- OK — Okay
- AM — Ante Meridiem
- PM — Post Meridiem
- Etc. — Et Cetera
- ASAP — As Soon As Possible
- AKA — Also Known As
- E.g. — Exempli Gratia
- I.e. — Id Est
- Vs. — Versus
- BTW — By The Way
- FYI — For Your Information
- TL;DR — Too Long, Didn't Read
- P.S. — Post Script
- Ltd. — Limited
- Pvt. — Private
- Dr. — Doctor
- Mr. — Mister
- Mrs. — Mistress
- Ms. — Ms.
- Prof. — Professor
- Avg. — Average
- Approx. — Approximately
- Max. — Maximum
- Min. — Minimum
- Qty. — Quantity
- Ref. — Reference
- Tel. — Telephone
- RIP — Rest in Peace
- FAQ — Frequently Asked Questions
- DIY — Do It Yourself
- VIP — Very Important Person
- SOS — Save Our Souls
- B2B — Business to Business
- B2C — Business to Consumer
- COO — Chief Operating Officer
- KPI — Key Performance Indicator
- IST — Indian Standard Time
- GMT — Greenwich Mean Time
- UTC — Coordinated Universal Time
- ETA — Estimated Time of Arrival
- DOB — Date of Birth
- PIN — Postal Index Number
- ISBN — International Standard Book Number
- ISSN — International Standard Serial Number
- ASAP — As Soon As Possible
- FYI — For Your Information
- AKA — Also Known As
- ETA — Estimated Time of Arrival
- RSVP — Repondez S'il Vous Plait
- SOS — Save Our Souls
- AM — Ante Meridiem
- PM — Post Meridiem
- AD — Anno Domini
- BC — Before Christ
- i.e — id est
- e.g — exempli gratia
- vs — versus
Banking & Govt (51)
- ATM — Automated Teller Machine
- IFSC — Indian Financial System Code
- MICR — Magnetic Ink Character Recognition
- UPI — Unified Payments Interface
- PAN — Permanent Account Number
- Aadhar — Unique Identification Authority of India
- KYC — Know Your Customer
- GST — Goods and Services Tax
- RBI — Reserve Bank of India
- SBI — State Bank of India
- Lakh — 100,000
- Crore — 10,000,000
- EMI — Equated Monthly Installment
- NRE — Non Resident External
- NRO — Non Resident Ordinary
- NRI — Non Resident Indian
- OCI — Overseas Citizen of India
- TDS — Tax Deducted at Source
- NEFT — National Electronic Funds Transfer
- RTGS — Real Time Gross Settlement
- IMPS — Immediate Payment Service
- FD — Fixed Deposit
- RD — Recurring Deposit
- NPA — Non-Performing Asset
- PIN — Personal Identification Number
- CVV — Card Verification Value
- NABARD — National Bank for Agriculture and Rural Development
- SEBI — Securities and Exchange Board of India
- IRDA — Insurance Regulatory and Development Authority
- FDI — Foreign Direct Investment
- MNC — Multinational Corporation
- NGO — Non-Governmental Organization
- PSU — Public Sector Undertaking
- CEO — Chief Executive Officer
- HR — Human Resources
- IFSC — Indian Financial System Code
- CFO — Chief Financial Officer
- CIBIL — Credit Information Bureau India Limited
- ITR — Income Tax Return
- EPF — Employees Provident Fund
- PPF — Public Provident Fund
- NPS — National Pension Scheme
- SIP — Systematic Investment Plan
- NAV — Net Asset Value
- IPO — Initial Public Offering
- GNP — Gross National Product
- FII — Foreign Institutional Investor
- IRDAI — Insurance Regulatory and Development Authority of India
- TRAI — Telecom Regulatory Authority of India
- PDS — Public Distribution System
- MGNREGA — Mahatma Gandhi National Rural Employment Guarantee Act
Medical (49)
- MBBS — Bachelor of Medicine, Bachelor of Surgery
- BDS — Bachelor of Dental Surgery
- B.Pharm — Bachelor of Pharmacy
- B.Sc Nursing — Bachelor of Science in Nursing
- ECG — Electrocardiogram
- EEG — Electroencephalogram
- MRI — Magnetic Resonance Imaging
- CT Scan — Computed Tomography Scan
- X-ray — X-radiation
- AIDS — Acquired Immunodeficiency Syndrome
- HIV — Human Immunodeficiency Virus
- BP — Blood Pressure
- BMI — Body Mass Index
- T2DM — Type 2 Diabetes Mellitus
- WHO — World Health Organization
- ICU — Intensive Care Unit
- OPD — Outpatient Department
- IVF — In Vitro Fertilization
- ORS — Oral Rehydration Solution
- TB — Tuberculosis
- ICMR — Indian Council of Medical Research
- ESI — Employees State Insurance
- MRI — Magnetic Resonance Imaging
- ECG — Electrocardiogram
- EEG — Electroencephalogram
- ICU — Intensive Care Unit
- OPD — Outpatient Department
- BMI — Body Mass Index
- WBC — White Blood Cells
- RBC — Red Blood Cells
- HIV — Human Immunodeficiency Virus
- AIDS — Acquired Immunodeficiency Syndrome
- ORS — Oral Rehydration Solution
- BP — Blood Pressure
- TB — Tuberculosis
- BCG — Bacillus Calmette-Guerin
- DPT — Diphtheria Pertussis Tetanus
- CT — Computed Tomography
- PET — Positron Emission Tomography
- USG — Ultrasonography
- ENT — Ear, Nose, and Throat
- BP — Blood Pressure
- CPR — Cardiopulmonary Resuscitation
- IV — Intravenous
- OT — Operating Theater
- NICU — Neonatal Intensive Care Unit
- IVF — In Vitro Fertilization
- PPE — Personal Protective Equipment
- RTPCR — Reverse Transcription Polymerase Chain Reaction
Education & Exams (42)
- NCERT — National Council of Educational Research and Training
- CBSE — Central Board of Secondary Education
- ICSE — Indian Certificate of Secondary Education
- ISC — Indian School Certificate
- NEET — National Eligibility cum Entrance Test
- JEE Main — Joint Entrance Examination Main
- JEE Advanced — Joint Entrance Examination Advanced
- IIT — Indian Institute of Technology
- NIT — National Institute of Technology
- BITS — Birla Institute of Technology and Science
- UPSC — Union Public Service Commission
- IAS — Indian Administrative Service
- IPS — Indian Police Service
- IFS — Indian Forest Service
- NDA — National Defence Academy
- CDS — Combined Defence Services
- KVS — Kendriya Vidyalaya Sangathan
- SCERT — State Council of Educational Research and Training
- GPA — Grade Point Average
- CGPA — Cumulative Grade Point Average
- CUET — Common University Entrance Test
- GATE — Graduate Aptitude Test in Engineering
- CAT — Common Admission Test
- CLAT — Common Law Admission Test
- NTSE — National Talent Search Examination
- KVPY — Kishore Vaigyanik Protsahan Yojana
- AIIMS — All India Institute of Medical Sciences
- JIPMER — Jawaharlal Institute of Postgraduate Medical Education and Research
- NIOS — National Institute of Open Schooling
- B.Ed — Bachelor of Education
- M.Ed — Master of Education
- Ph.D — Doctor of Philosophy
- B.Tech — Bachelor of Technology
- M.Tech — Master of Technology
- BBA — Bachelor of Business Administration
- MBA — Master of Business Administration
- BCA — Bachelor of Computer Applications
- MCA — Master of Computer Applications
- BA — Bachelor of Arts
- BSc — Bachelor of Science
- BCom — Bachelor of Commerce
- CV — Curriculum Vitae
Education (38)
- UGC — University Grants Commission
- AICTE — All India Council for Technical Education
- NIRF — National Institutional Ranking Framework
- NTA — National Testing Agency
- KVPY — Kishore Vaigyanik Protsahan Yojana
- NDA — National Defence Academy
- CDS — Combined Defence Services
- CLAT — Common Law Admission Test
- CUET — Common University Entrance Test
- GATE — Graduate Aptitude Test in Engineering
- UPSC — Union Public Service Commission
- SSC — Staff Selection Commission
- TET — Teacher Eligibility Test
- RTE — Right to Free and Compulsory Education
- SCERT — State Council of Educational Research and Training
- DIET — District Institute of Education and Training
- B.Sc — Bachelor of Science
- M.Sc — Master of Science
- B.Com — Bachelor of Commerce
- M.Com — Master of Commerce
- BA — Bachelor of Arts
- MA — Master of Arts
- LLB — Bachelor of Laws
- LLM — Master of Laws
- BDS — Bachelor of Dental Surgery
- BAMS — Bachelor of Ayurvedic Medicine and Surgery
- BHMS — Bachelor of Homeopathic Medicine and Surgery
- B.Arch — Bachelor of Architecture
- Diploma — Diploma in Engineering
- ITI — Industrial Training Institute
- Polytechnic — Polytechnic College
- PUC — Pre-University Course
- HSC — Higher Secondary Certificate
- SSLC — Secondary School Leaving Certificate
- ICSE — Indian Certificate of Secondary Education
- ISC — Indian School Certificate
- IB — International Baccalaureate
- NIOS — National Institute of Open Schooling
Banking (20)
- NEFT — National Electronic Funds Transfer
- RTGS — Real Time Gross Settlement
- UPI — Unified Payments Interface
- IMPS — Immediate Payment Service
- KYC — Know Your Customer
- EMI — Equated Monthly Installment
- FD — Fixed Deposit
- RD — Recurring Deposit
- NPA — Non-Performing Asset
- GDP — Gross Domestic Product
- GNP — Gross National Product
- SIP — Systematic Investment Plan
- NAV — Net Asset Value
- CIBIL — Credit Information Bureau India Limited
- MICR — Magnetic Ink Character Recognition
- CVV — Card Verification Value
- POS — Point of Sale
- NRI — Non-Resident Indian
- TDS — Tax Deducted at Source
- TAN — Tax Account Number
Government (18)
- IAS — Indian Administrative Service
- IPS — Indian Police Service
- IFS — Indian Foreign Service
- IRS — Indian Revenue Service
- IES — Indian Engineering Service
- RRB — Railway Recruitment Board
- NTPC — Non-Technical Popular Categories
- ALP — Assistant Loco Pilot
- CRPF — Central Reserve Police Force
- BSF — Border Security Force
- CISF — Central Industrial Security Force
- ITBP — Indo-Tibetan Border Police
- SSB — Services Selection Board
- NDA — National Defence Academy
- CDS — Combined Defence Services
- AFCAT — Air Force Common Admission Test
- INET — Indian Navy Entry Test
- ASO — Administrative Services Operator
Organization (8)
- RBI — Reserve Bank of India
- SEBI — Securities and Exchange Board of India
- IRDA — Insurance Regulatory and Development Authority
- NABARD — National Bank for Agriculture and Rural Development
- ISRO — Indian Space Research Organisation
- DRDO — Defence Research and Development Organisation
- BARC — Bhabha Atomic Research Centre
- NASA — National Aeronautics and Space Administration
Govt (1)
- PIO — Person of Indian Origin
Browse A to Z
4 (1)
5 (2)
A (30)
AI · ATP · AC · AIDS · ATM · Aadhar · AM · ASAP · AKA · Avg. · Approx. · Ampere · AIIMS · API · AR · AD · AICTE · AI · ASCII · API · ATP · AIDS · AC · ALP · AFCAT · ASO · ASAP · AKA · AM · AD
B (35)
BITS · BDS · B.Pharm · B.Sc Nursing · BP · BMI · BTW · B.Ed · B.Tech · BBA · BCA · BA · BSc · BCom · BIOS · B2B · B2C · BC · BARC · BIOS · BMI · BP · BCG · BARC · BMP · BP · B.Sc · B.Com · BA · BDS · BAMS · BHMS · B.Arch · BSF · BC
C (39)
CBSE · CDS · CGPA · CPU · CSS · CO2 · CT Scan · Crore · Celsius · CUET · CAT · CLAT · CD · CFC · CVV · CEO · CCTV · CDN · CFO · CTO · COO · CV · CE · CIBIL · CSIR · CDS · CLAT · CUET · CSS · CDMA · CMOS · CNG · CT · CPR · CIBIL · CVV · CRPF · CISF · CDS
D (17)
DNA · DC · Dr. · DNS · DVD · DIY · DOB · DRDO · DIET · DNS · DNA · DPT · DRDO · DOC · DC · DDT · Diploma
E (16)
ECG · EEG · EMI · Etc. · E.g. · EMF · ETA · EPF · ESI · ECG · EEG · EMI · EMF · ENT · ETA · e.g
F (10)
FYI · FTP · FD · FDI · FAQ · FII · FTP · FD · FTP · FYI
G (21)
GPA · GPS · GPU · GST · Gram · GATE · GUI · GB · GIF · GPRS · GMT · GNP · GATE · GPU · GUI · GIF · GDP · GNP · GSM · GPS · GM
H (15)
HDD · HTTP · HTTPS · HTML · HIV · Hertz · HR · HDMI · HDD · HTML · HIV · HTTP · HTTPS · HDMI · HSC
I (52)
ICSE · ISC · IIT · IAS · IPS · IFS · IFSC · I.e. · IP · IDE · IR · ICU · IVF · IMPS · IRDA · IFSC · IMEI · ISP · IoT · IST · ITR · IPO · IRDAI · ISRO · ICMR · IMAP · IoT · ICU · IMPS · IRDA · ISRO · IP · ISP · IMAP · IR · IV · IVF · ITI · ICSE · ISC · IB · IAS · IPS · IFS · IRS · IES · ITBP · INET · IMEI · ISBN · ISSN · i.e
J (7)
JEE Main · JEE Advanced · JS · Joule · JIPMER · JPEG · JPEG
K (10)
KVS · KYC · Kelvin · Kilometre · KVPY · KB · kWh · KPI · KVPY · KYC
L (16)
LED · LASER · Lakh · Ltd. · Litre · LAN · LTE · LCD · LAN · LED · LASER · LDR · LCD · LPG · LLB · LLM
M (25)
ML · MBBS · MRI · MICR · Mr. · Mrs. · Ms. · Max. · Min. · M.Ed · M.Tech · MBA · MCA · MB · MNC · MGNREGA · ML · MP3 · MP4 · MRI · MAC · MICR · M.Sc · M.Com · MA
N (33)
NCERT · NEET · NIT · NDA · NADH · NRE · NRO · NRI · NTSE · NIOS · NTP · NEFT · NPA · NABARD · NGO · NFC · NPS · NAV · NIRF · NTA · NDA · NEFT · NPA · NAV · NABARD · NASA · NFC · NTP · NICU · NRI · NIOS · NTPC · NDA
O (17)
OTP · Ohm · OCI · OK · OS · OPD · ORS · OTG · OLED · OTP · OS · OPD · ORS · OCR · OLED · OT · OTP
P (29)
PDF · pH · PAN · PM · P.S. · Pvt. · Prof. · Pascal · Ph.D · PNG · PIN · PSU · PCB · PIO · PPF · PDS · pH · PDF · PPT · PNG · POP · PVC · PET · PPE · POS · Polytechnic · PUC · PIN · PM
Q (3)
R (20)
RAM · ROM · RNA · RBI · Ref. · RTGS · RD · RIP · RTE · RNA · RADAR · RBC · RTGS · RD · RBI · RAR · RJ45 · RTPCR · RRB · RSVP
S (28)
SCERT · SSD · SIM · SoC · SBI · SQL · SMTP · SI · STP · SEBI · SOS · SMPS · SaaS · SIP · SSC · SCERT · SSD · SMTP · SQL · SDK · SONAR · SIP · SEBI · SVG · STP · SSLC · SSB · SOS
T (12)
T2DM · TDS · TL;DR · Tel. · TB · TRAI · TET · TB · TCP · TNT · TDS · TAN
U (12)
UPSC · URL · USB · UPI · UV · UTC · UGC · UPSC · USB · UPI · UV · USG
V (10)
VPN · Vs. · Volt · VIP · VoLTE · VGA · VR · VPN · VGA · vs
W (8)
Wi-Fi · Watt · WAN · WWW · WHO · WAN · WBC · WiFi
X (2)
Z (1)
Why the Expansion Is Not the Answer
Knowing that CPU stands for Central Processing Unit tells you almost nothing about what a CPU does, and an exam question rarely asks for the expansion alone. Each page here gives the expansion first and then the one or two sentences that make it usable — what the thing is, where you meet it in your syllabus, and what it is commonly confused with.