presenter vs altruist

presenter and altruist both are nouns.

Word	Noun	Adjective	Verb	Adverb
presenter	Yes	No	No	No
altruist	Yes	No	No	No

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

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

presenter (noun)	altruist (noun)
person who makes a gift of property	someone who makes charitable donations intended to increase human well-being
an advocate who presents a person (as for an award or a degree or an introduction etc.)
someone who presents a message of some sort (as a petition or an address or a check or a memorial etc.)