companion vs tovarisch

companion and tovarisch both are nouns.

Word	Noun	Adjective	Verb	Adverb
companion	Yes	No	Yes	No
tovarisch	Yes	No	No	No

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

Other hyponyms of companion include date, escort, playfellow, playmate, tovarich.

companion (noun)	tovarisch (noun)
a friend who is frequently in the company of another	a comrade (especially in Russian communism)
one paid to accompany or assist or live with another
a traveler who accompanies you

companion (verb)	tovarisch (verb)
be a companion to somebody