Noun
invocation -
a prayer asking God's help as part of a religious service
supplication
orison ,
petition ,
prayer the act of communicating with a deity (especially as a petition or in adoration or contrition or thanksgiving); "the priest sank to his knees in prayer"
divine service ,
religious service ,
service the performance of duties by a waiter or servant; "that restaurant has excellent service"
invocation -
the act of appealing for help
effectuation ,
implementation the act of implementing (providing a practical means for accomplishing something); carrying into effect
invocation -
an incantation used in conjuring or summoning a devil
incantation ,
conjuration a ritual recitation of words or sounds believed to have a magical effect
invocation -
calling up a spirit or devil
conjuring ,
conjuration ,
conjury
magic ,
thaumaturgy any art that invokes supernatural powers