abut vs edge

abut is not a noun while edge is a noun.

Word	Noun	Adjective	Verb	Adverb
abut	No	No	Yes	No
edge	Yes	No	Yes	No

As verbs, abut and edge are synonyms defined as:

Other synonyms of abut include adjoin, border, butt, butt against, butt on, march.

abut (noun)	edge (noun)
	a sharp side formed by the intersection of two surfaces of an object
	the outside limit of an object or area or surface; a place farthest away from the center of something
	a slight competitive advantage
	the attribute of urgency in tone of voice
	the boundary of a surface
	a line determining the limits of an area

abut (verb)	edge (verb)
lie adjacent to another or share a boundary	lie adjacent to another or share a boundary
	provide with an edge
	advance slowly, as if by inches
	provide with a border or edge