ben ‧ e ‧ fac ‧ tor /ˈbenəˌfæktə, ˈbenɪˌfæktə $ -ər/ BrE AmE noun [countable]
someone who gives money for a good purpose:
An anonymous benefactor donated $2 million.
benefactor of/to
a generous benefactor of the university
ben ‧ e ‧ fac ‧ tor /ˈbenəˌfæktə, ˈbenɪˌfæktə $ -ər/ BrE AmE noun [countable]
someone who gives money for a good purpose:
An anonymous benefactor donated $2 million.
benefactor of/to
a generous benefactor of the university
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012