1. Make clear 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]
    
2. Give an exhibition of to an interested audience
   "The inventor demonstrated his new device";
   - show, demo, exhibit, present, showcase
    
3. Provide clear proof or evidence of something through actions, behaviour, or observable qualities
   "This decision demonstrates his sense of fairness";
   - attest, 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: demonstrating, demonstrates, demonstrated

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

Encyclopedia: Demonstrate