The most well-known socialist economies were central command economies, it is true. But "socialism" isn't synonymous with central command. It's supposed to mean

The most well-known socialist economies were central command economies, it is true. But "socialism" isn't synonymous with central command. It's supposed to mean the economy is controlled by the workers, rather than by capitalists/shareholders. In the USSR, the economy was controlled by the communist party on behalf of the workers. Under democratic socialism, enterprises are democratically managed by the people who work there.