Long vs Short trade

Simple defintions:

Long Trade or Buy means the investor is buying stocks with the expectation that the value will go up in future.

Short Trade or Sell means the investor is borrowing stocks from a Broker and selling it to another investor with the expectation of value going down. Once the stocks value decrease, the investor buys back from market and return to Broker.

Good reference: https://www.thebalance.com/long-and-short-trading-term-definitions-1031122