In response to reader mail, here is a list of my blog's most commonly used acronyms and abbreviations:
NRB - Narrow Range Bar
WRB - Wide range Bar
ORH (L) - Opening Range High (Low)
NRIB - Narrow Range Inside Bar
ORBO - Opening Range Breakout
C&H - Cup and Handle
H&S - Head and Shoulders
BO - Breakout
BE - Break even
EOD - End of Day
B&B - Base and Break
PP - Pivot Point
R2 - Pivot point resistance level 2
S2 - Pivot point support level 2
NR7 - Narrowest price/volume bar in the last 7 bars. Price/volume contraction ahead of expansion.
4/15 - 4th bar on the 15 minute time frame.
SS - Short squeeze
SMA - Simple moving average
EMA - Exponential moving average
5 EMA - 5 period EMA
S/R - Support/Resistance
R:R - Risk: Reward Ratio. If the trade generates 3.0R, the return is three times the amount risked.
WL - Watch list
TI - Trade_Ideas Scanner
PDH(L) - Previous day high (low)
R-zone - Fibonacci retracement zone
If you need help understanding my underlying trading methodology, read the Intro to WSW Blog under Key Posts in the side panel. It's not complete by any means, but it's a good start.