summoning vs invocation

summoning and invocation both are nouns.

Word	Noun	Adjective	Verb	Adverb
summoning	Yes	No	No	No
invocation	Yes	No	No	No

As nouns, invocation is a hypernym of summoning; that is, invocation is a word with a broader meaning than summoning:

summoning: calling up supposed supernatural forces by spells and incantations
invocation: calling up a spirit or devil

Other hypernyms of summoning include conjuration, conjuring, conjury.

summoning (noun)	invocation (noun)
calling up supposed supernatural forces by spells and incantations	the act of appealing for help
	calling up a spirit or devil
	a prayer asking God's help as part of a religious service
	an incantation used in conjuring or summoning a devil