"college mates" is a correct and usable phrase in written English.
It is used to refer to the people you attend college with or meet while at college. For example: "I had a great time catching up with my college mates at the alumni reunion last weekend."
Dwight Morrow had bought the seats in celebration for son and college mates.
Friends including fellow writers, college mates and colleagues have shared the link many times over on my Facebook page.
A quick poll of my colleagues at the Guardian reveal similar decisions, in contrast to my college mates.
There are half a dozen former Film and Media Studies college mates of Guy's in attendance, all of them hitting 40, older but not necessarily wiser.
Apparently, the students in high-density housing, where everyone was packed close together, felt less connected to their college mates and this apparently dampened their generosity.
Rupert Penry-Jones and Shaun Evans kicked off wonderfully in The Last Weekend as two college mates who weren't really friends, but still pretended.
He was a college mate of Mr. Mahdi's in Baghdad, and introduced him to his first wife.
I forget to mention this when I email my old college mate Jeremy, inviting him to swap nostalgic library moments.
It's also where Shaun is offered his first and probably last ever olive by the over-ingratiating dad of his new middle class college mate.
There are eight guests at Harold's party, all gay except Alan, Michael's old college mate (excellently played by John Hopkins), who turns up unexpectedly, in bad shape.
They wrote "The Foot Fist Way" and "Eastbound & Down" (another college mate, Shawn Harwell, substituted for Best on three episodes); Best appears in both; and Hill appears in "The Foot Fist Way" and directed that movie and two episodes of "Eastbound".
