socialist

adj

1. Of, relating to, supporting, or advocating socialism.

   “...it must be remembered that in a Socialist farm or manufactory, each labourer would be under the eye not of one master, but of the whole community.”

   “I am convinced there is only one way to eliminate these grave evils, namely through the establishment of a socialist economy, accompanied by an educational system which would be oriented toward social goals.”

2. (not-comparable)Of, belonging to, or constituting a party or political group that advocates socialism.

   “An intelligent Socialist movement will use their patriotism, instead of merely insulting it, as hitherto.”

noun

1. One who supports or advocates socialism.

   “A contest, who can do most for the common good, is not the kind of competition which Socialists repudiate.”

2. A member of a party or political group that advocates socialism.