demonstrant

plural demonstrants

1. A participant in a demonstration.

   One demonstrant, with his face twisted in anger, was shouting the Japanese equivalent of “lemme at ’em.”

   1948, Mark Gayn, Japan Diary, New York, N.Y.: William Sloane Associates, Inc., page 166

   2 more examples

   Anybody who does anything in the way of business, if he can but write his name, is a “merchant;” and especially when an address is getting up by agitators of elastic conscience, content to procure an array of demonstrants numerous, if not select.

   1853, Henry Keppel, “Reply to Mr. Hume continued—His Captains—His “Gentleman”—His “Merchants”—His Prompters—Himself”, in A Visit to the Indian Archipelago, in H. M. Ship Mæander. With Portions of the Private Journal of Sir James Brooke, K.C.B., volume I, London: Richard Bentley, […], page 232

   A report from London announced that the Italian Embassy had given out the statement that in many towns the shops were closed while crowds of demonstrants paraded shouting, “Long live America! Down with Wilson!”

   1920, John Bach McMaster, “The Treaty of Peace”, in The United States in the World War (1918–1920), New York, N.Y.; London: D. Appleton and Company, page 341

   Synonyms: demonstrator