"invocation" in the noun sense
1. invocation, supplication
a prayer asking God's help as part of a religious service
2. invocation
an incantation used in conjuring or summoning a devil
3. conjuring, conjuration, conjury, invocation
calling up a spirit or devil
4. invocation
the act of appealing for help
Source: WordNet® (An amazing lexical database of English)
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