1 —1 use as in: It demonstrates my point.Definition
The exact meaning of this sense of demonstrate can depend upon its context. For example:
"I will demonstrate how to throw a Frisbee." — show how to do something
"I will demonstrate how much quicker the new computer is than the old one." — show how something works
"Her questioned demonstrated that she was listening and thinking deeply about what was said." — showed to be true or proved
If the biochemists were able to demonstrate the physical workings of neuroses (phobias, or difficulties getting pleasure from life), if they could pinpoint the chemicals and impulses and interbrain conversations and information exchanges that constitute these feelings, would the psychoanalysts pack up their ids and egos and retire from the field?
There are no more uses of "demonstrate" flagged with this meaning in Girl Interrupted.