wheeler vs marcher

wheeler and marcher both are nouns.

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

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

Other hypernyms of wheeler include parader.

wheeler (noun)	marcher (noun)
a draft horse harnessed behind others and nearest the wheels of a vehicle	fights on foot with small arms
someone who makes and repairs wooden wheels	walks with regular or stately step
a person who rides a bicycle	an inhabitant of a border district
the man at the outermost end of the rank in wheeling