Meaning : Summon into action or bring into existence, often as if by magic.
Example :
Raise the specter of unemployment.
He conjured wild birds in the air.
Call down the spirits from the mountain.
Synonyms : arouse, bring up, call down, call forth, conjure, conjure up, evoke, put forward, raise, stir
Meaning : Cite as an authority. Resort to.
Example :
He invoked the law that would save him.
I appealed to the law of 1900.
She invoked an ancient law.
Synonyms : appeal
Meaning : Request earnestly (something from somebody). Ask for aid or protection.
Example :
Appeal to somebody for help.
Invoke God in times of trouble.
Synonyms : appeal