i Register
In some senses, collegian is marked as slang. Watch for register when choosing this word.
noun
A student (or a former student) of a college
She then remembered that her own early bearing towards him had been haughty, and indifferent; that she had sneered at the young collegian's shyness; and now thought with "the late remorse of love," how unlike to this had been Ethel's gentle kindness.
An inmate of a prison.
While it [the wind] roared through the steeple of St George’s Church, and twirled all the cowls in the neighbourhood, it made a swoop to beat the Southwark smoke into the jail; and, plunging down the chimneys of the few early collegians who were yet lighting their fires, half suffocated them.
adj
Of or relating to a college or its students.