Noun
One who calls upon (a person, especially a god) for help, assistance or guidance.
An invoker of God's mercy
One who appeals for validation to a (notably cited) authority.
One who conjures up spirits with incantations.
Someone who induces as an inevitable consequence.
One who solicits, petitions for, appeals to a favorable attitude.
(computing) That which causes a program or subroutine to execute.
Source: en.wiktionary.orgHowever, when I create a view it sets the Security to Definer and there is no option to set Security to Invoker. Source: Internet