The experiment provided demonstrable evidence of the theory.

She demonstrates her skills in the dance competition.

The demonstrability of the theory was proven through rigorous experimentation.

He demonstrably improved his performance in the second half of the game.

She pointed at the painting demonstratively.

Her demonstrativeness was evident in her passionate speech.

The demonstrators gathered in the city center to protest against the government's new policies.

The demonstrant held up a sign to protest against the government.

The demonstrableness of the theory was evident in the experiment results.

The demonstrance of the new technology amazed the audience.