blessing vs prayer

blessing and prayer both are nouns.

Word	Noun	Adjective	Verb	Adverb
blessing	Yes	No	No	No
prayer	Yes	No	No	No

As nouns, prayer is a hypernym of blessing; that is, prayer is a word with a broader meaning than blessing:

blessing: the act of praying for divine protection
prayer: the act of communicating with a deity (especially as a petition or in adoration or contrition or thanksgiving)

Other hypernyms of blessing include supplication.

As nouns, prayer is a hypernym of blessing; that is, prayer is a word with a broader meaning than blessing:

Other hypernyms of blessing include orison, petition.

As nouns, prayer is a hypernym of blessing; that is, prayer is a word with a broader meaning than blessing:

Other hypernyms of blessing include orison, petition.

blessing (noun)	prayer (noun)
the act of praying for divine protection	the act of communicating with a deity (especially as a petition or in adoration or contrition or thanksgiving)
the formal act of approving	earnest or urgent request
a ceremonial prayer invoking divine protection	a fixed text used in praying
a short prayer of thanks before a meal	reverent petition to a deity
a desirable state	someone who prays to God