supporter vs angel

supporter and angel both are nouns.

Word	Noun	Adjective	Verb	Adverb
supporter	Yes	No	No	No
angel	Yes	No	No	No

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

supporter (noun)	angel (noun)
a band (usually elastic) worn around the leg to hold up a stocking (or around the arm to hold up a sleeve)	spiritual being attendant upon God
a support for the genitals worn by men engaging in strenuous exercise	someone who provides financial support for some venture
a person who backs a politician or a team etc.	person of exceptional holiness
a person who contributes to the fulfillment of a need or furtherance of an effort or purpose
someone who supports or champions something