'Demonstrate' definitions:

Definition of 'demonstrate'

(from WordNet)
verb
Give an exhibition of to an interested audience; "She shows her dogs frequently"; "We will demo the new software in Washington" [syn: show, demo, exhibit, present, demonstrate]
verb
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" [syn: prove, demonstrate, establish, show, shew] [ant: confute, disprove]
verb
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" [syn: attest, certify, manifest, demonstrate, evidence]
verb
March in protest; take part in a demonstration; "Thousands demonstrated against globalization during the meeting of the most powerful economic nations in Seattle" [syn: demonstrate, march]

Definition of 'Demonstrate'

From: GCIDE
  • Demonstrate \Dem"on*strate\ (?; 277), v. t. [L. demonstratus, p. p. of demonstrare to demonstrate; de- + monstrare to show. See Monster.]
  • 1. To point out; to show; to exhibit; to make evident. --Shak. [1913 Webster]
  • 2. To show, or make evident, by reasoning or proof; to prove by deduction; to establish so as to exclude the possibility of doubt or denial. [1913 Webster]
  • We can not demonstrate these things so as to show that the contrary often involves a contradiction. --Tillotson. [1913 Webster]
  • 3. (Anat.) To exhibit and explain (a dissection or other anatomical preparation). [1913 Webster]

Synonyms of 'demonstrate'

From: Moby Thesaurus