almsgiver vs donor

almsgiver and donor both are nouns.

Word	Noun	Adjective	Verb	Adverb
almsgiver	Yes	No	No	No
donor	Yes	No	No	No

As nouns, donor is a hypernym of almsgiver; that is, donor is a word with a broader meaning than almsgiver:

Other hypernyms of almsgiver include bestower, conferrer, giver, presenter.

almsgiver (noun)	donor (noun)
a person who gives alms	person who makes a gift of property
	(medicine) someone who gives blood or tissue or an organ to be used in another person (the host)