1. Abbreviations representing various organizations or institutions
APEC (Asia-Pacific Economic Cooperation) Asia-Pacific Economic and Trade Cooperation
IOC (International Olympic Committee ) International Olympic Committee
ISO (International Organization for Standardization) International Organization for Standardization
OPEC (Organization of Petroleum Exporting Countries) OPEC, Organization of Petroleum Exporting Countries
WTO (World Trade Organization) World Trade Organization
2. Abbreviations indicating various systems
BBS (Bulletin Board System) electronic bulletin board system or (Bulletin Board Service) electronic bulletin Services
GPS (Global Position System) Global Positioning System
GSM (Global System for Mobile Communications) Global System for Mobile Communications
CIMS (Computer Integrated Manufacturing System) Computer Integrated Manufacturing System
DOS (Disc Operating System) Disk Operating System
ITS (Intelligent Transportation System) Intelligent Transportation System
NMD (National Missile Defense) Country Missile Defense System
NASDAQ (National Association of Securities Dealers Automated Quotation) NASDAQ,
3. Position or degree related Abbreviations
CEO (Chief Executive Officer) Chief Executive Officer
CFO (Chief Finance Officer) Chief Financial Officer
CIO (Chief Information Officer) Chief Information Officer Officer
COO (Chief Operating Officer) Chief Operating Officer
CTO (Chief Technology Officer) Chief Technology Officer
CPA (Certified Public Accountant) Certified Public Accountant
MBA (Master of Business Administration)
MPA (Master of Public Administration)
4. Abbreviations related to finance Words
ATM (Automated Teller Machine) Automatic Teller Machine
CBD (Central Business District) Central Business District
GDP (Gross Domestic Product) Domestic Gross National Product
GNP (Gross National Product) Gross National Product
5. Abbreviations related to examinations
CET (College English Test) University English Proficiency Test
GRE (Graduate Record Examination) American Graduate Record Examination
PETS (Public English Test System) National English Proficiency Test
6. Other aspects Abbreviations
AIDS (Acquired Immune Deficiency Syndrome) Acquired Immune Deficiency Syndrome, AIDS
AM (Amplitude Modulation) Amplitude Modulation
API (Air Pollution Index) Air Pollution Index
CDMA (Code Division Multiple Access) Code Division Multiple Access, a radio transmission and reception method
CD (Compact Disc) Laser Disk
CIP (Cataloging in Publication) pre-catalogue
DIY (Do It Yourself) refers to installing your own computer, sewing clothes, making greeting cards, etc.
DVD (Digital Video Disc ) Digital Video Disc
EMS (Express Mail Service) Express Mail
EQ (Emotional Quotient) Emotional Quotient
IQ (Intelligence Quotient) Intelligence Quotient
IT (Information Technology) Information Technology
OA (Office Automation) Office Automation
OEM (Original Equipment Manufacturer) Original Equipment Manufacturer
PC ( Personal Computer) Personal Computer
SOHO (Small Office Home Office) Small Home Office
SOS (Save Our Souls; radio signal once used universally to appeal for help esp. by a ship or boat; urgent request for help from sb. in trouble) is an internationally used emergency call signal, also used for general help or help
VIP (Very Important Person) important person
VOD (Video on Demand) Video on Demand
WWW (World Wide Web) World Wide Web
Commonly used English abbreviations for online chats
ASAP As soon as possible as soon as possible
BF boyfriend
GF girlfriend
BTW By the way Just talk
BBL Be back later Come back later
BRB Be right back
CU See you Goodbye
CUL See you later See you next time
DIIK Damned if I know I really don’t know
FE For example
FTF Face to face
FYI For your information
IAE In any event
IC I see I understand
ILY I love you I love you
IMO In my opinion
IOW In other words
LOL laughing out loudly
NRN No reply necessary
OIC Oh, I see Oh, I know
PEM Privacy enhanced mail Confidential mail
RSVP Reply if you please please reply
TIA Thanks in advance Thank you very much
TTUL Talk to you later I will talk to you later
TY Thank you Thank you
VG very good Very good
WYMM Will you marry me Will you marry me