friend vs comrade

friend and comrade both are nouns.

Word	Noun	Adjective	Verb	Adverb
friend	Yes	No	No	No
comrade	Yes	No	No	No

As nouns, comrade is a hyponym of friend; that is, comrade is a word with a more specific, narrower meaning than friend:

friend: a person you know well and regard with affection and trust
comrade: used as a term of address for those male persons engaged in the same movement

friend (noun)	comrade (noun)
a person you know well and regard with affection and trust	a friend who is frequently in the company of another
a person with whom you are acquainted	used as a term of address for those male persons engaged in the same movement
an associate who provides cooperation or assistance
a person who backs a politician or a team etc.