call down vs bless

call down and bless both are verbs.

Word	Noun	Adjective	Verb	Adverb
call down	No	No	Yes	No
bless	No	No	Yes	No

As verbs, bless is a hyponym of call down; that is, bless is a word with a more specific, narrower meaning than call down:

Other hyponyms of call down include anathemise, anathemize, bedamn, beshrew, curse, damn, imprecate, maledict.

call down (verb)	bless (verb)
censure severely or angrily	give a benediction to
summon into action or bring into existence, often as if by magic	render holy by means of religious rites
	make the sign of the cross over someone in order to call on God for protection; consecrate
	confer prosperity or happiness on