Capitalism has created massive amounts of prosperity because it is just free trade with respect for property rights. But greedy power hungry people always attempt to twist & corrupt language. They have worked to launder socialist & communist institutions (like central banking & govt schools & govt "regulation") under the banner of "capitalism."

It's fine if you think the word "capitalism" has been corrupted enough that you prefer not to use it, but there are libertarians & anarcho-capitalists who do mean free trade with respect for property rights. You may have a hard time understanding people if you don't keep that in mind. And the freedom to trade is the source of basically all significant wealth in human history. Production & trade create wealth, theft destroys it.