molding vs ornament

molding and ornament both are nouns.

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

As nouns, ornament is a hypernym of molding; that is, ornament is a word with a broader meaning than molding:

Other hypernyms of molding include decoration, ornamentation.

molding (noun)	ornament (noun)
a preliminary sculpture in wax or clay from which a finished work can be copied	something used to beautify
the act of creating something by casting it in a mold
a decorative recessed or relieved surface on an edge
a decorative strip used for ornamentation or finishing
sculpture produced by molding

molding (verb)	ornament (verb)
	make more attractive by adding ornament, colour, etc.
	be an ornament to