"A limit order is an order to buy or sell a stock at a specific price or better. A buy limit order can only be executed at the limit price or lower, and a sell limit order can only be executed at the limit price or higher." - Investopedia
"A stop-limit order will be executed at a specified price, or better, after a given stop price has been reached. Once the stop price is reached, the stop-limit order becomes a limit order to buy or sell at the limit price or better." - Investopedia
If the stop-limit order simply becomes a limit order at the stop price, what is the point of making a stop-limit order if you can simply make a limit order? Both definitions appear to be the same thing to me. Stop-limit orders have a given "stop" price while limit orders have "a specified price," and both sell or buy at this price point. I suppose the difference could be the fact that before the stop-limit order is executed, it is a different type of order, but I don't see how there's a functional difference.