Philanthropist

philanthropist [ fi-LAN-thruh'-pist ]
[ noun ]

MEANING :
1. a person who is charitable in an effort to increase the well-being of humankind
2. a person who has a great love of humankind

USAGE EXAMPLE 1 :
A philanthropist funded the research and development of the new vaccine which has saved many lives.

USAGE EXAMPLE 2 :
He said Sir Allen was the most significant philanthropist Northern Ireland has ever known.