liability vs weak point

liability and weak point both are nouns.

Word	Noun	Adjective	Verb	Adverb
liability	Yes	No	No	No
weak point	Yes	No	No	No

As nouns, weak point is a hyponym of liability; that is, weak point is a word with a more specific, narrower meaning than liability:

Other hyponyms of liability include disadvantage.

liability (noun)	weak point (noun)
the quality of being something that holds you back	an attribute that is inadequate or deficient
an obligation to pay money to another party
the state of being legally obliged and responsible