fusilier vs marcher

fusilier and marcher both are nouns.

Word	Noun	Adjective	Verb	Adverb
fusilier	Yes	No	No	No
marcher	Yes	No	No	No

As nouns, marcher is a hypernym of fusilier; that is, marcher is a word with a broader meaning than fusilier:

fusilier: (formerly) a British infantryman armed with a light flintlock musket
marcher: fights on foot with small arms

Other hypernyms of fusilier include foot soldier, footslogger, infantryman.

fusilier (noun)	marcher (noun)
(formerly) a British infantryman armed with a light flintlock musket	fights on foot with small arms
	walks with regular or stately step
	an inhabitant of a border district