The demonstrater explained the experiment to the students.

The demonstrators gathered in the square to protest against the government.

This experiment provides demonstratory evidence of the theory.

The demonstrance of the new technology amazed the audience.

The demonships sailed across the dark sea.

He achieved demonship after years of practicing dark magic.

She will demonstrateth her new invention at the conference.

He demonstratesthe new software to the team.

This theory is not demonstratable.

This is my car.