One who takes part in a demonstration; a protester.
The forefinger.
One who demonstrates anything, or proves beyond doubt.
An item, particularly a vehicle, used in demonstrations to a customer or user.
An assistant to a lecturer.
One who demonstrates products in a retail environment; a merchandiser.
One who teaches anatomy from the dissected parts.
One who marches; one who participates in a march.
An inhabitant of a march (border country); specifically, a marcher lord.
A border territory, a march (now only in (attributive) use).