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1. Give an exhibition of to an interested audience
   - show, demo, exhibit, present, showcase
    
2. Establish the validity of something, as by an example, explanation or experiment
   "The experiment demonstrated the instability of the compound"
   - prove, establish, show, shew [Brit, archaic]
    
3. Provide evidence for; stand as proof of; show by one's behaviour, attitude, or external attributes
   "This decision demonstrates his sense of fairness"
   - attest, certify, manifest, evidence
    
4. March in protest; take part in a demonstration
   "Thousands demonstrated against globalization during the meeting of the most powerful economic nations in Seattle"
   - march

Derived forms: demonstrates, demonstrating, demonstrated

See also: demonstration, demonstrative, demonstrator

Type of: affirm, bear witness, confirm, corroborate, dissent, evidence, protest, prove, resist, show, substantiate, support, sustain, testify

Encyclopedia: Demonstrate