OIC-Oh, I see (I see);

BRB-Be right back (be right back);

BFN-Goodbye for the time being (goodbye);

Lol-laugh out loud (laughter);

As soon as possible-as soon as possible;

BTW-by the way (by the way);

JK-Just kidding (just kidding);

Talk to you later.

Abbreviations of various organizations or institutions:

1. Asia Pacific Economic Cooperation

2. International Olympic Committee

3. International Organization for Standardization

4. World Trade Organization World Trade Organization

2. Abbreviations of various systems:

1. Global Positioning System

2.GSM (Global System for Mobile Communications) Global System for Mobile Communications.

3.CIMS computer integrated manufacturing system.

4. Intelligent Transportation System

5. National missile defense system