marching vs routemarch

marching and routemarch both are nouns.

Word	Noun	Adjective	Verb	Adverb
marching	Yes	No	No	No
routemarch	Yes	No	No	No

As nouns, routemarch is a hyponym of marching; that is, routemarch is a word with a more specific, narrower meaning than marching:

marching: the act of marching; walking with regular steps (especially in a procession of some kind)
routemarch: a long training march for troops

Other hyponyms of marching include countermarch, goose step, lockstep, promenade, quick march.

marching (noun)	routemarch (noun)
the act of marching; walking with regular steps (especially in a procession of some kind)	a long training march for troops