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v.
march in protest; take part in a demonstration; "Thousands demonstrated against globalization during the meeting of the most powerful economic nations in Seattle"
v.
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"; "This decision demonstrates his sense of fairness"
v.
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"
v.
to show, make visible or apparent; "The Metropolitan Museum is exhibiting Goya's works this month"; "Why don't you show your nice legs and wear shorter skirts?"; "National leaders will have to display the highest skills of statesmanship"
v.
bring out for display; "The proud father produced many pictures of his baby"; "The accused brought forth a letter in court that he claims exonerates him"