shorting is essential to hedging, and essential to risk analytics
“shorts” means short positions or short trades, and can also mean the holders of short positions
“the short” = the seller, and “the long” = the buyer in a trade.
You COVER your SHORT POSITION by buying.
You “go short” at a price and cover at another (hopefully lower) price.
In other words, you have a “short sale” at $x, covered at $y.