When someone mentions
something, such as an idea, in an attempt to make people feel a certain way or with a specific goal in mind.
To refer to
something in order to support your ideals.
Also to make use of a law or right in defense or opposition to
something perhaps. It is usually used as a transition verb.
Carrie invoked her Fifth Amendment privileges.
Tim invoked
history to prove his point, because he needed support for his ideas.
The
suspect invoked his right to an attorney.