Here is a List of words for people who don't fully understand the simplified online Language:
BB-Bye Bye
BRB-Be Right Back / Bathroom Break
B - Buy
S - Sell
T - Trade
N - Need
LOL - Laugh(ing) out loud
U - You
TY/THX - Thank You/Thanks
PM - Private Message
MM - Mail Me
HF - Have Fun
OMG - Oh My God
WTF - What The Fuc*
BTW - By The Way
N/C - No Comment
NVM - NeverMind
KS - Kill Steal
PK - Player Kill/ PKer - Player Killer
GW - Guild War
PT - Party
RES/RR - Reset
PVP - Player vs. Player
VIT - Vitality
STR - Strength
AGI - Agility
ENE - Energy
LVL - Level
DMG - Damage
GM - Game Master/Guild Master
TGM - Test Game Master
HGM - Head Game Master
GL - Good Luck
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DK/BK/BM - Dark Knight/Blade Knight/ Blade Master
DW/SM/GM - Dark Wizzard/Soul Master/Grand Master
ELF/ME - Elf/Muse Elf
MG/DM - Magic Gladiator/Dual Master
DL - Dark Lord
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B - Jewel of Bless
S - Jewel of Soul
C - Jewel of chaos
JOC - Jewel of Creation
JOL - Jewel of Life
JOG - Jewel of Guardian
JOH - Jewel of Harmony
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BOB - Bill of Barlog
LS - Lighting Sword
CDA - Chaos Dragon Axe
CLS - Chaos Lighting Staff
CNB - Chaos Nature Bow
DB - Double Blade
GS - Great Scythe or Giant Sword
CMS - Crystal Morning Star
CS - Crystal Sword
CA - Cresent Axe
RB - Rune Blade
DRG - Dragon
BD- Black Dragon
DP - Dark Phoenix
GD- Great Dragon
DK - Dragon Knight
Leg - Legendary
GS - Grand Soul
DS - Dark Soul
DM - Dark Master
ES - Evil Spirit
HF - Hell Fire
TS - Twisting Slash
Have Fun
---Raficoo
some Credits to Sources.