Commie and Left wing

Commie noun - An adherent or advocate of an economic system in which the means of production are owned and controlled by the state.

Left wing and commie are semantically related. In some cases you can replace phrase "Left wing" with "Commie", this terms are similar.

Left wing noun - A political belief stressing progress, the essential goodness of humankind, and individual freedom.

Commie and left wing are semantically related. You can use "Commie" instead an adjective phrase "Left wing".