edge vs bound

edge and bound both are nouns.

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

As nouns, bound is a hypernym of edge; that is, bound is a word with a broader meaning than edge:

Other hypernyms of edge include boundary, bounds.

As nouns, edge and bound are synonyms defined as:

Other synonyms of edge include boundary.

edge (noun)	bound (noun)
a sharp side formed by the intersection of two surfaces of an object	a light, self-propelled movement upwards or forwards
the outside limit of an object or area or surface; a place farthest away from the center of something	the greatest possible degree of something
a slight competitive advantage	the line or plane indicating the limit or extent of something
the attribute of urgency in tone of voice	a line determining the limits of an area
the boundary of a surface
a line determining the limits of an area

edge (adjective)	bound (adjective)
	confined by bonds
	secured with a cover or binding; often used as a combining form
	held with another element, substance or material in chemical or physical union
	confined in the bowels
	headed or intending to head in a certain direction; often used as a combining form as in `college-bound students'
	bound by an oath
	covered or wrapped with a bandage
	bound by contract
	(usually followed by `to') governed by fate

edge (verb)	bound (verb)
lie adjacent to another or share a boundary	place limits on (extent or amount or access)
provide with an edge	spring back; spring away from an impact
advance slowly, as if by inches	move forward by leaps and bounds
provide with a border or edge	form the boundary of; be contiguous to