subbase vs molding

subbase and molding both are nouns.

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

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

Other hypernyms of subbase include moulding.

subbase (noun)	molding (noun)
the lowest molding of an architectural base or of a baseboard	a preliminary sculpture in wax or clay from which a finished work can be copied
	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