I am an anarchist. I don't care for the growth of the use of the term "comrade" to refer to other anarchists. I would rather use the term "Compernro" or "Companion".
"Comrade" comes from "camarada", Spanish for a group of soldiers billeted together, via French, and literally means "barrack mate", hence, "fellow soldier". Its use among Communists and other revolutionaries is by analogy to the military usage.
"companion", which apparently was the term of address preferred by European Anarchists in the 19th and early 20th Centuries (and maybe to this day, for all I know), and appears to have been used by them expressly in contradistinction from the Communist "comrade". Someone told me that they remember reading a letter from Marx in which he speaks of "the companions", referring to Bakunin's Anarchists.
Do you mean compañero/a?