Abbreviations in English are shortened forms of words or phrases, used to save time and space in writing and speech. This includes acronyms , initialisms, and contractions—like USA (United States of America) or etc. (et cetera). Understanding abbreviations helps improve reading speed, note-taking, and communication in academic, professional, and daily contexts. This list supports ESL learners, students, and professionals by clarifying commonly used short forms , their meanings, and usage. It aligns with grammar rules, business writing, and modern English standards for clear, correct language use.
Abbreviations Name ASL Age/Sex/Location AFAIK As far as I know BRB Be Right Back BTW By the way BCNU Be seeing you B4N Bye for Now BFF Best Friends Forever CTN Can’t talk now CYA Cover You’re A** CYE Check your email DI Download ETA Estimated time of arrival FYI For your information FBO Facebook official FWIW For what it’s worth GG Good game GR8 Great GL Good luck GMV Got my vote GTG Got to go GJ Good job HTH Hope this helps HMB Hit me back ILY I love you ISO In search of IRL In rela life IMHO In my humble opinion J/K Just Kidding LOL laugh out loud L8R Later LMAO laughing my a** off OMG Oh my God OT Off topic PPL People PC Personal computer POS Parent over shoulder PLS Please POV Point of view PTFO Passed the f** out RBTL Read between the lines RT Real time SFW Safe work work TTYN Talk to you never TY Thank you TTYS Talk to you soon TXT Text W/E Whatever W8 Wait
Abbreviations Name min Minute sec Second AM Ante Meridiem (before noon) PM Post Meridiem (afternoon) BC Before the Year 0 AD After the Year 0
Abbreviations Name PA Personal Assistant Dpt. Department Capt. Captain Col. Colonel VP President SVP Senior Vice President Prof. Professor RN Registered Nurse CMO Chief Marketing Officer CFO Chief Financial Officer Lt. Lieutenant MD Medical Doctor Gov. Government Mgmt. Management St. Saint Sgt. Sergeant Dr. Doctor Gen. General CEO Chief Executive Officer EVP Executive Vice President Mr. Mister Sr. Senior P President Pol. Politics
Abbreviations Name Pt. Pints Qt. Quarts M Meter ft. foot no. number oz ounce Gal. Gallon Lb. Pounds in. inch mi. mile sq square vol. volume G Gram Kg Kilogram Cm Centimeter mph. miles per hour Mg. milligram mm milimeter
Abbreviations Name ETOH Alcohol ECT Electro Conclusive Therapy a/g ratio Albumin to globulin ratio. b.i.d. Twice daily ICU Intensive Care Unit ITU Intensive Therapy Unit JT Joint LBP Low Back Pain M/H Medical History MVP Mitral Valve Prolapse npo Nothing by mouth NSR Normal sinus rhythm of the heart p.o. By mouth p.r.n. As needed GvHD Graft vs. Host Disease gtt Drops BP Blood Pressure C/O Complaint of in vitro In the laboratory in vivo In the body N/V Nausea or Vomiting NCP Nursing Care Plan mg Milligrams ml Milliliters PD Progressive disease p.o. By mouth p.r.n. As needed SOB Shortness of Breath T Temperature O.D. Right eye O.S. Left eye tab Tablet Wt Weight PD Progressive disease PT Physical therapy O.U. Both eyes P Pulse IU International Units q.d. Each day q2h Every 2 hours qAM Each morning qhs At each bedtime qod Every other day qPM Each evening s/p Status post
Abbreviations Name ACM Association for Computing Machinery AI Artificial Intelligence CD-RW CD Read/Write CL Command Language GUI Graphical User Interface HP Hewlett Packard ALU Arithmetic Logic Unit AMD Advanced Micro Devices X.400 Electronic Mail Protocol X.500 Directory Server Protocol BASIC Beginners All-purpose Symbolic Instruction Code BCD Binary Coded Decimal CAN Campus Area Network CASE Computer Aided Software Engineering BPI Bytes Per Inch DTS Digital Theater System DVD Digital Video/Versatile Disk DMA Direct Memory Access DNA Digital Network Architecture EFM Eight-to-Fourteen Modulation ENIAC Electronic Numerical Integrator And Calculator CD-R CD-Recordable CD-ROM Compact Disk Read Only Memory HTTP HyperText Transport Protocol IBM International Business Machine WWW World Wide Web XHTML eXtensible HyperText Markup Language CPU Central Processing Unit CRT Cathode Ray Tube JRE Java Runtime Engine JSP Java Server Pages D/A Digital-to-Analog DAT Digital Audio Tape DRAM Dynamic RAM DSN Distributed Systems Network ISDN Integrated Services Digital Network ISP Internet Service Provider DDL Data Definition Language DDS Digital Data Storage LPM Line Per Minute LSI Large Scael Integration EBCDIC Extended Binary Coded Decimal Interchange Code MAN Metropolitan Area Network MAR Memory Address Register MB Mega Bytes EDSAC Electronic Delay Storage Automatic Calculator EDVAC Electronic Discrete Variable Automatic Calculator ULSI Ultra Large Scale Integration UPC Universal Product Code UTF Unicode Transformation Format VAN Value Added Network NIC Network Interface Card NICNET National Informatics Center NETwork FEP Front End Processor FLOPS Floating Point Operations Per Second PAN Personal Area Network PC Personal Computer FM Frequency Modulation GB Giga Bytes GPRS General Packet Radio Service HSS Hierarchical Storage System HTML HyperText Markup Language LAN Local Area Network LCD Liquid Crystal Display LED Light Emitting Diode JPEG Joint Photographic Experts Group TB Tera Bytes URL Uniform Resource Locator USB Universal Serial Bus IP Internet Protocol PDF Portable Document Format RAM Random Access Memory ROM Read Only Memory WAN Wide Area Network WAP Wireless Application Protocol VCR Video Cassette Recorder
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