edge vs molding

edge and molding both are nouns.

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

As nouns, molding is a hyponym of edge; that is, molding is a word with a more specific, narrower meaning than edge:

edge: the outside limit of an object or area or surface; a place farthest away from the center of something
molding: a decorative recessed or relieved surface on an edge

Other hyponyms of edge include border, hem, luff, border, moulding, selvage, selvedge, berm, shoulder, roadside, wayside.

edge (noun)	molding (noun)
a sharp side formed by the intersection of two surfaces of an object	a preliminary sculpture in wax or clay from which a finished work can be copied
the outside limit of an object or area or surface; a place farthest away from the center of something	the act of creating something by casting it in a mold
a slight competitive advantage	a decorative recessed or relieved surface on an edge
the attribute of urgency in tone of voice	a decorative strip used for ornamentation or finishing
the boundary of a surface	sculpture produced by molding
a line determining the limits of an area

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