Definitions for: Demonstrate

[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] 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] show or demonstrate something to an interested audience; "She shows her dogs frequently"; "We will demo the new software in Washington"
[v] march in protest; take part in a demonstration; "Thousands demonstrated against globalization during the meeting of the most powerful economic nations in Seattle"

Webster (1913) Definition: 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.

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.

We can not demonstrate these things so as to show
that the contrary often involves a contradiction.

3. (Anat.) To exhibit and explain (a dissection or other
anatomical preparation).

Synonyms: attest, certify, demo, establish, evidence, exhibit, manifest, march, present, prove, shew, show, show

Antonyms: confute, disprove

See Also: affirm, authenticate, bear witness, bring home, condemn, confirm, contradict, corroborate, dissent, negate, notarise, notarize, picket, protest, prove, prove oneself, reflect, resist, show, stultify, substantiate, support, sustain, testify

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