demonstrator

• Substantivo que designa a pessoa que demonstra, explica ou mostra como algo funciona ou é feito, ou a pessoa que participa de uma manifestação, protesto ou comício público.

A noun referring to a person who shows or explains how something works or is done, or someone who takes part in a public protest or rally.

1. Teacher or assistant demonstrating principlesB2formal

   A person, often a teacher or teaching assistant, who shows and explains principles or techniques being taught.

   Demonstrador

   • The chemistry demonstrator showed the students how to mix the compounds safely.
   • Our physics demonstrator explained the principles of electromagnetism with a live experiment.
   • The lab demonstrator guided us through the dissection process step by step.

   Sinônimosexpositorinstructorlecturerteachertutor

2. Sales demonstratorB2formal

   A person who shows how a product works to potential customers, often in a store or at a trade show.

   Demonstrador de vendas

   • The demonstrator at the electronics store showed us how the new blender works.
   • A product demonstrator was explaining the features of the vacuum cleaner to shoppers.
   • The car demonstrator let me test drive the new model.

   Sinônimosexhibitorpitchmanpromotersales repsalesmansalespersonsaleswoman

3. Participant in a public protestB2formal

   A person who takes part in a public display of group feeling, such as a protest or march.

   Participante de protesto

   • Thousands of demonstrators gathered in the city square to demand change.
   • The demonstrators marched peacefully through the streets.
   • Police monitored the crowd of demonstrators to ensure safety.

   Sinônimosactivistmarcherprotester