demo

DEMO noun

[ C ] uk/ˈdeməʊ/ us demo noun [C]
(MARCH)short for demo nstration (= political march)

демонстрация, митинг
a student demo
demo verb [ T ] uk/ˈdeməʊ/ us
to show something and explain how it works

демонстрировать
We need someone to demo a new piece of software.