1. past tense of demonstrate; showed clearly by giving proof or evidence
2. past tense of demonstrate; showed how something works or is done
3. past tense of demonstrate; took part in a public protest or march

Examples

• The scientist demonstrated that the theory was correct through careful experiments.
• She demonstrated how to use the new software to her colleagues.
• The test results demonstrated his improvement in math skills.
• The chef demonstrated the proper technique for making pasta.
• Thousands of people demonstrated against the new law in the capital.
• His actions demonstrated his commitment to helping others.
• The teacher demonstrated the science experiment to the class.