demonstrate

verb

1. 1

   establish the validity of something, as by an example, explanation or experiment

   The experiment demonstrated the instability of the compound

   The mathematician showed the validity of the conjecture

2. 2

   provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes

   His high fever attested to his illness

   The buildings in Rome manifest a high level of architectural sophistication

3. 3

   give an exhibition of to an interested audience

   She shows her dogs frequently

   We will demo the new software in Washington

4. 4

   march in protest; take part in a demonstration

   Thousands demonstrated against globalization during the meeting of the most powerful economic nations in Seattle