250 Abbreviations List That are Commonly Used


Abbreviations are short forms of words used in English. They help us say long words quickly. For example, “TV” is an abbreviation for “television.” We use abbreviations a lot because they save time. They’ve been around for a long time, even in old writings. Abbreviations are important in English. When we read or write, we often see them. They help make things clear and fast. If you want to understand English well, knowing about abbreviations is helpful.

Abbreviations List

Abbreviation Meanings
SONAR Sound Navigation and Ranging
SARS Severe Acute Respiratory Syndrome
NTP Network Time Protocol/ Normal Temperature and Pressure
RQ Respiratory Quotient
SMS Short Message Service
SNGPL Sui Northern Gas Pipelines Limited
SONAR Sound Navigation and Ranging
SSGPL Sui Southern Gas Pipeline Limited
STD Subscriber’s Trunk Dialing
ATP Adenosine Tri Phosphate
RBC Red Blood Cells/Corpuscles
ECG Electro Cardio Gram
PVC Poly vinyl Chloride
RAM Random Access Memory
CFC Choro Fluor Carbon
LASER Light Amplification by Stimulated emission of Radiation
RADAR Radio Detection and Ranging
MRCP Member of Royal College of Physicians
MRCS Member of Royal College of Surgeons
MRI Magnetic Resonance Imaging
MS Medical Superintendent
MSN Microsoft Network
AIDS Acquired Immune Deficiency Syndrome
ROM Read Only Memory
LAN Local Area Network
WWW World Wide Web
LPG Liquefied Petroleum Gas
TNT Tri Nitro Toluene
RNA Ribonucleic Acid
CNG Compressed Natural Gas
ICU Intensive Care Unit
IEA International Energy Agency
INSTRAW International Research and Training Institute for The Advancement of Women
INTELSAC International Telecommunications Satellite Consortium
Intelsat International Telecommunications Satellite Organization
DNA Deoxyribonucleic Acid
BCG Bacillus Calmette Guerin
STP Standard Temperature and Pressure/Shielded Twisted Pair/Sodium Tripolyphosphate/Spanning Tree Protocol
ATP Adenosine Triphosphate
KWH Kilo Watt Hour
BTU British thermal Unit
IRBM Intermediate Range ballistic Missile
LDL Low Density Lipoprotein
MAF Million Acre Feet
HDL Hardware Description Language
MCV Mean Corpuscular Volume
HTTP Hypertext Transfer Protocol
IAEA International Atomic Energy Agency (UN)
IBM International Business Machine
IC Integrated Circuit/ Intelligence Corps
ICBM Inter-Continental Ballistic Missile
JAXA Japan Aerospace Exploration Agency
KANUPP Karachi Nuclear Power Plant
KAPCO Knot Ado Power Company
kHz Kilohertz
KV Kilo Volt
kW Kilowatt
MCAT Medical Colleges Admission Test
MDS Master in Dental Surgery
MNP Mobile Number Probability
MRBM Medium Range Ballistic Missile
MW Megawatt
NADRA National Database and Registration Authority
NEPRA National Electric Power Regulatory Authority
NM Nautical Mile
CTBT Comprehensive Test Ban Treaty
NPN Negative Positive Negative
PNP Purine Nucleoside Phosphorylase
WAN Wide Area Network
CPU Central Processing Unit
ESRO European Space Research Organization
FAT File Allocation Table
FCPS Fellow of The Royal College of Physicians and Surgeons
FM Frequency Modulation
FMCT Fissile Material Cut-Off Treaty
UHF Ultra-High Frequency
LED Light emitting Diode
LCD Liquid Crystal Display
CMCC China Mobile Communications Corporation
COM Computer Aided Manufacturing
COMSAT Communications Satellite Corporation
COMSTECH Council of Scientific and Technology Cooperation of Islamic Conference
CSIRO Commonwealth Scientific and Industrial Research Organization
CMCC China Mobile Communications Corporation
EDB Engineering Development Board
EEG Electroencephalogram
ENERCON Energy Conservation Centre
EPA EPA: Energy Protection Agency
EPD Energy Protection Department
ESA European Space Agency
CT-Scan Computerized Axial Tomography Scanning
DVD Dynamic Versatile Disc
ECAT Engineering Colleges Admission Test
Cal Calorie
CD Compact Disc/ Civil Defence/ Community Development
CD-ROM Compact Disc Read-Only Memory
CECP Cotton Export Corporation of Pakistan
CHASNUPP Chashma Nuclear Power Plant
PEMRA Pakistan Electronic Media Regulatory Authority
PTA Pakistan Telecommunication Authority
RADAR Radio Detection and Ranging
SALT Strategic Arms Limitation Talks
SLV Satellite Launch Vehicle
FRCS Fellow of The Royal College of Surgeons
GHz Gigahertz
GMT Greenwich Mean Tim
HIV Human Immune Deficiency Virus
HTML Hypertext Mark-Up Language
CTBT Comprehensive Test Ban Treaty
ISP Internet Service Provider
IT Information Technology
ITB Information Technology Board
SUPARCO Space and Upper Atmosphere Research Committee (Pakistan)
BIOS Basic Input Output System
BDS Bachelor of Dental Surgery/ Bomb Disposal Squad
BP Current Account
CAA Civil Aviation Authority
CABB Centre Of Agricultural Biochemistry and Biotechnology


Common Internet Abbreviations

Abbreviation Meaning
AFK Away From Keyboard
BRB Be Right Back
BTW By The Way
DM Direct Message
FAQ Frequently Asked Questions
FYI For Your Information
GTG or G2G Got To Go
ICYMI In Case You Missed It
IDK I Don’t Know
IMO/IMHO In My Opinion/In My Humble Opinion
IRL In Real Life
LOL Laugh Out Loud
NSFW Not Safe For Work
OMG Oh My God/Goodness
PM Private Message
ROFL Rolling On the Floor Laughing
SMH Shaking My Head
TBA To Be Announced
TBD To Be Determined
TFW That Feeling When
TL;DR Too Long; Didn’t Read
TYT Take Your Time
TY Thank You
YOLO You Only Live Once
WTF What The F***
BFF Best Friends Forever
TBT Throwback Thursday
FOMO Fear Of Missing Out
LMK Let Me Know
YMMV Your Mileage May Vary
AMA Ask Me Anything
DMCA Digital Millennium Copyright Act
RIP Rest In Peace
AFAIK As Far As I Know
IDC I Don’t Care
TBH To Be Honest
MCM Man Crush Monday
WCW Woman Crush Wednesday
Q&A Questions and Answers
ELI5 Explain Like I’m 5
OP Original Poster
PSA Public Service Announcement
DIY Do It Yourself
NVM or NM Never Mind
TIL Today I Learned
BAE Before Anyone Else or shortened “babe”
OTP One True Pairing
NSFL Not Safe For Life

Abbreviations in the Academic World

Abbreviation Full Form
A.B.D. All But Dissertation
A.M. Artium Magister (Master of Arts)
B.A. Bachelor of Arts
B.S. Bachelor of Science
Ed.D. Doctor of Education
e.g. exempli gratia (for example)
etc. et cetera (and so on)
et al. et alia (and others)
GPA Grade Point Average
i.e. id est (that is)
J.D. Juris Doctor
M.A. Master of Arts
M.B.A. Master of Business Administration
M.D. Medicinae Doctor (Doctor of Medicine)
M.S. Master of Science
Ph.D. Philosophiae Doctor (Doctor of Philosophy)
P.S. Post Scriptum (written after)
R.A. Research Assistant
T.A. Teaching Assistant
vs. versus (against)
LL.B. Legum Baccalaureus (Bachelor of Laws)
LL.M. Legum Magister (Master of Laws)
M.Phil. Master of Philosophy
MFA Master of Fine Arts
MSW Master of Social Work
Q.E. Qualifying Examination
R&D Research and Development
R.I.P. Requiescat in pace (Rest in Peace)
RN Registered Nurse
ROFL Rolling On the Floor Laughing (informal)
S.T.M. Sacrae Theologiae Magister (Master of Sacred Theology)
STEM Science, Technology, Engineering, and Mathematics
UG Undergraduate
VG Very Good
Viva Viva Voce (by oral examination)
WIP Work In Progress
APA American Psychological Association
ASAP As Soon As Possible
CFP Call For Papers
CV Curriculum Vitae
DOI Digital Object Identifier
ECTS European Credit Transfer and Accumulation System
ESL English as a Second Language
HOD Head of Department
IELTS International English Language Testing System
IEEE Institute of Electrical and Electronics Engineers
JSTOR Journal Storage
LOR Letter of Recommendation
MOOC Massive Open Online Course
MLA Modern Language Association
NAS National Academy of Sciences
NSF National Science Foundation
OA Open Access
TOEFL Test of English as a Foreign Language
URL Uniform Resource Locator
AERA American Educational Research Association
ALT Assistant Language Teacher
AMA American Medical Association
APSA American Political Science Association
ASA American Sociological Association
BPS British Psychological Society
CME Continuing Medical Education
DBA Doctor of Business Administration
ERIC Educational Resources Information Center
FAFSA Free Application for Federal Student Aid
GRE Graduate Record Examination
ISTE International Society for Technology in Education
LMS Learning Management System
NBER National Bureau of Economic Research
PBL Problem-Based Learning
PEER Peer Evaluation, Education, and Review
RFP Request For Proposal
SSRN Social Science Research Network
TESOL Teaching English to Speakers of Other Languages
UGC University Grants Commission

Common Medical Abbreviations

Abbreviation Meaning
BP Blood Pressure
HR Heart Rate
RX Prescription
BID Twice a Day
qd Every Day
tid Three Times a Day
PRN As Needed
SOB Shortness Of Breath
NPO Nothing By Mouth
CBC Complete Blood Count
WBC White Blood Cell
RBC Red Blood Cell
BUN Blood Urea Nitrogen
FBS Fasting Blood Sugar
UTI Urinary Tract Infection
COPD Chronic Obstructive Pulmonary Disease
CHF Congestive Heart Failure
CAD Coronary Artery Disease
MI Myocardial Infarction (Heart Attack)
DNR Do Not Resuscitate
ICU Intensive Care Unit
CCU Coronary Care Unit
ECG or EKG Electrocardiogram
EEG Electroencephalogram
MRI Magnetic Resonance Imaging
OTC Over The Counter
GERD Gastroesophageal Reflux Disease
CVA Cerebrovascular Accident (Stroke)
TIA Transient Ischemic Attack
IM Intramuscular
IV Intravenous
DOE Dyspnea On Exertion
PERRL Pupils Equal, Round, Reactive to Light
ACLS Advanced Cardiac Life Support
AED Automated External Defibrillator
PT Physical Therapy or Prothrombin Time
ADL Activities of Daily Living
AKA Above Knee Amputation
AF Atrial Fibrillation
ABG Arterial Blood Gas
CABG Coronary Artery Bypass Graft
CKD Chronic Kidney Disease
EMG Electromyogram
ENT Ear, Nose, and Throat
ED Erectile Dysfunction or Emergency Department
HBP High Blood Pressure
MS Multiple Sclerosis or Morphine Sulfate
RR Respiratory Rate
URI Upper Respiratory Infection
qid Four Times a Day

Common Computer Abbreviations List

Abbreviation Full Form
CPU Central Processing Unit
RAM Random Access Memory
ROM Read-Only Memory
HDD Hard Disk Drive
SSD Solid State Drive
USB Universal Serial Bus
VGA Video Graphics Array
HDMI High-Definition Multimedia Interface
BIOS Basic Input/Output System
OS Operating System
GUI Graphical User Interface
URL Uniform Resource Locator
HTTP Hypertext Transfer Protocol
HTTPS Hypertext Transfer Protocol Secure
FTP File Transfer Protocol
ISP Internet Service Provider
IP Internet Protocol
DNS Domain Name System
LAN Local Area Network
WAN Wide Area Network
WLAN Wireless Local Area Network
VPN Virtual Private Network
I/O Input/Output
KB Kilobyte
MB Megabyte
GB Gigabyte
TB Terabyte
GHz Gigahertz
MHz Megahertz
Wi-Fi Wireless Fidelity
SW Software
HW Hardware



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