demonstrere

verb
  1. To show or make something clear by giving proof or evidence. verb
    The scientist was able to demonstrere the effectiveness of the new drug through a series of experiments.
    The teacher used a model to demonstrere the concept to the students.
  2. To participate in a public display of group opinion, often in protest. verb
    Thousands of people gathered to demonstrere against the new policy.
    The activists planned to demonstrere in front of the city hall.