mol vs weight unit

mol and weight unit both are nouns.

Word	Noun	Adjective	Verb	Adverb
mol	Yes	No	No	No
weight unit	Yes	No	No	No

As nouns, weight unit is a hypernym of mol; that is, weight unit is a word with a broader meaning than mol:

mol: the molecular weight of a substance expressed in grams; the basic unit of amount of substance adopted under the Systeme International d'Unites
weight unit: a decimal unit of weight based on the gram

Other hypernyms of mol include metric weight unit.

mol (noun)	weight unit (noun)
the molecular weight of a substance expressed in grams; the basic unit of amount of substance adopted under the Systeme International d'Unites	a unit used to measure weight
	a decimal unit of weight based on the gram