marcher

noun3

1. •
   One who marches; one who participates in a march.

   • Mr. Nelson covered the Selma-to-Montgomery freedom marches, including Bloody Sunday, on March 7, 1965, when 600 marchers were attacked with billy clubs and tear gas. — 2009
2. •
   (historical) An inhabitant of a march (border country); specifically, a marcher lord.
3. •
   (historical) A border territory, a march (now only in (attributive) use).

   • Here is a scene of the marcher state of which they were margraves being turned into a duchy under Henry II Jasomirgott, who has made his capital at Vienna. — 2013