March March, v. i. [imp. & p. p. Marched; p. pr. & vb. n. Marching.] [F. marcher, in OF. also, to tread, prob. fr. L. marcus hammer. Cf. Mortar.] 1. To move with regular steps, as a soldier; to walk in a grave, deliberate, or stately manner; to advance steadily. --Shak. 2. To proceed by walking in a body or in military order; as, the German army marched into France., Marching March"ing, a. & n., fr. March, v. Marching money (Mil.), the additional pay of officer or soldier when his regiment is marching. In marching order (Mil.), equipped for a march. Marching regiment. (Mil.) (a) A regiment in active service. (b) In England, a regiment liable to be ordered into other quarters, at home or abroad; a regiment of the line.