giver vs philanthropist

giver and philanthropist both are nouns.

Word	Noun	Adjective	Verb	Adverb
giver	Yes	No	No	No
philanthropist	Yes	No	No	No

As nouns, philanthropist is a hyponym of giver; that is, philanthropist is a word with a more specific, narrower meaning than giver:

giver: person who makes a gift of property
philanthropist: someone who makes charitable donations intended to increase human well-being

giver (noun)	philanthropist (noun)
person who makes a gift of property	someone who makes charitable donations intended to increase human well-being
someone who devotes himself completely