angel vs spiritual being

angel and spiritual being both are nouns.

Word	Noun	Adjective	Verb	Adverb
angel	Yes	No	No	No
spiritual being	Yes	No	No	No

As nouns, spiritual being is a hypernym of angel; that is, spiritual being is a word with a broader meaning than angel:

angel: spiritual being attendant upon God
spiritual being: an incorporeal being believed to have powers to affect the course of human events

Other hypernyms of angel include supernatural being.

angel (noun)	spiritual being (noun)
spiritual being attendant upon God	an incorporeal being believed to have powers to affect the course of human events
someone who provides financial support for some venture
person of exceptional holiness