Alum/ˈæləm/ Definition 1 of 2Pro Tip 1/3Alumni Events Used to refer to graduates attending or invited to school events, often for networking. Join fellow alums at the annual reunion dinner. Pro Tip 2/3School Pride Conveys a sense of belonging and pride when referring to one's own alma mater. As an alum, she always wore her university's colors. Pro Tip 3/3Fundraising Context Alumni are often approached by their institutions for donations or support. The college reaches out to alums for its scholarship fund.