1. (

• invocation ,
• supplication

) a prayer asking God's help as part of a religious service ;

2. (

• supplication ,
• plea

) a humble request for help from someone in authority ;

3. (

• prayer ,
• supplication ,

) 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" ;