march vs countermarch

march and countermarch both are nouns.

Word	Noun	Adjective	Verb	Adverb
march	Yes	No	Yes	No
countermarch	Yes	No	Yes	No

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

march: the act of marching; walking with regular steps (especially in a procession of some kind)
countermarch: (military) a march in the reverse direction or back along the same route

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

As verbs, countermarch is a hyponym of march; that is, countermarch is a word with a more specific, narrower meaning than march:

Other hyponyms of march include file, parade, promenade, troop, goose step, debouch, march out.

march (noun)	countermarch (noun)
the act of marching; walking with regular steps (especially in a procession of some kind)	(military) a march in the reverse direction or back along the same route
a steady advance
genre of music written for marching
a procession of people walking together
district consisting of the area on either side of a border or boundary of a country or an area

march (verb)	countermarch (verb)
lie adjacent to another or share a boundary	change the order of soldiers during a march
walk fast, with regular or measured steps; walk with a stride	march back along the same way
march in a procession
walk ostentatiously
force to march
cause to march or go at a marching pace
march in protest; take part in a demonstration