A Position Trader is going to hold his position for a long time frame (from months to years). This type of trader usually looks at weekly or monthly charts, and he would not be concerned with short-term fluctuations as he believes that the primary trend will smooth these out. while intraday traders buy and sell on the same day
A trading plan is a systematic method for identifying and trading securities that takes into consideration a number of variables including time, risk and the investor’s objectives
long is creating a buy position, short is creating a sell position, long unwinding is closing the long(buy)position by selling it. short covering is closing the short(sell)position by buying it.