The phrase "an old comrade" is correct and usable in written English.
It can be used to refer to a long-time friend or associate, often in a military or historical context.
Example: "After many years apart, I was thrilled to reconnect with an old comrade from my days in the service."
Alternatives: "a longtime friend" or "an old friend".
Actually, Lermontov was killed by Nikolai Martynov, an old comrade from military school, in July 1841.
Not only is Mr Wang an old comrade of President Hu Jintao and a member of the Politburo.
IT is not often that you see an old comrade in arms of Osama bin Laden hoisting the American flag outside his home.
Then an old comrade kindly showed me a few tricks about book-indexing, so that's been my main bread-and-butter ever since".
My associate returned to our table, and stated that the man was "an old comrade from the civil war, but he was on the other side, with Franco".
In Chicago, I greeted, say, John Lewis, a sharecropper's son who had grown up to be a congressman, more like an old comrade-in-arms than like someone I'd mentioned in a couple of articles.
Since Maoism is very much in vogue in some quarters of the left, Gilles is scolded by an older comrade, and warned away from "C.I.A. propaganda".
Mr McFadden was told that the young man would be shot as punishment, but that since he himself had been in the IRA, RAAD were willing to do their old comrade a favour and only shoot him once.
(I have to say that my old comrade has a point about the United States becoming a semi-political banana republic. But the semi-shackling of the filibuster was a step away from chaos, paralysis, and the empowerment of reactionary juntas, not a step toward it).
I love the melodramatic shootout that follows Ocelot goads his old comrade into an open provocation with Dolph in the crossfire, killing Gurlukovich, his unit and the Commandant in an instant while effortlessly tossing off his duster in one improbably stylish move.
