march vs procession

march and procession both are nouns.

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

As nouns, procession is a hypernym of march; that is, procession is a word with a broader meaning than march:

Other hypernyms of march include advance, advancement, forward motion, onward motion, progress, progression.

As nouns, procession is a hypernym of march; that is, procession is a word with a broader meaning than march:

march: a procession of people walking together
procession: the group action of a collection of people or animals or vehicles moving ahead in more or less regular formation

march (noun)	procession (noun)
the act of marching; walking with regular steps (especially in a procession of some kind)	the group action of a collection of people or animals or vehicles moving ahead in more or less regular formation
a steady advance	the act of moving forward (as toward a goal)
genre of music written for marching	(theology) the origination of the Holy Spirit at Pentecost
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)	procession (verb)
lie adjacent to another or share a boundary
walk fast, with regular or measured steps; walk with a stride
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