to make evident or establish by arguments or reasoning; prove

to demonstrate a philosophical principle.

to describe, explain, or illustrate by examples, specimens, experiments, or the like

to demonstrate the force of gravity by dropping an object.

to manifest or exhibit; show

He demonstrated his courage by his actions in battle.

to display openly or publicly, as feelings

to demonstrate one's anger by slamming a door.

to exhibit the operation or use of (a device, process, product, or the like), usually to a purchaser or prospect

to demonstrate an automobile.

to make, give, or take part in, a demonstration

The pickets required a license to demonstrate.

Military . to attack or make a show of force to deceive an enemy.

verb

conceal , hide , confuse , distort , falsify , misrepresent

verb

authenticate , determine , establish , evidence , evince , exhibit , expose , flaunt , indicate , make evident , make out , manifest , prove , roll out * , show and tell * , test , testify to , trot out * , try , validate , confirm , debunk , describe , express , give for instance , make clear , ostend , proclaim , set forth , show how , teach , walk one through , action for a cause exhibit , fast , lie in , march , march on , parade , picket , protest , rally , sit in , stage walkout , strike , walkout , display , reveal , bear out , corroborate , endorse , show , substantiate , verify , attest , bespeak , betoken , demonstrate , explain , illustrate , promulgate , reflect , signify