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.

Source: Webster's Revised Unabridged Dictionary (1913)
 

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.

Source: Webster's Revised Unabridged Dictionary (1913)