supplication vs invocation

supplication and invocation both are nouns.

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

As nouns, supplication and invocation are synonyms defined as:

supplication and invocation: a prayer asking God's help as part of a religious service

supplication (noun)	invocation (noun)
the act of communicating with a deity (especially as a petition or in adoration or contrition or thanksgiving)	the act of appealing for help
a prayer asking God's help as part of a religious service	calling up a spirit or devil
a humble request for help from someone in authority	a prayer asking God's help as part of a religious service
	an incantation used in conjuring or summoning a devil