jowl vs lineament

jowl and lineament both are nouns.

Word	Noun	Adjective	Verb	Adverb
jowl	Yes	No	No	No
lineament	Yes	No	No	No

As nouns, lineament is a hypernym of jowl; that is, lineament is a word with a broader meaning than jowl:

jowl: a fullness and looseness of the flesh of the lower cheek and jaw (characteristic of aging)
lineament: the characteristic parts of a person's face: eyes and nose and mouth and chin

Other hypernyms of jowl include feature.

jowl (noun)	lineament (noun)
the jaw in vertebrates that is hinged to open the mouth	the characteristic parts of a person's face: eyes and nose and mouth and chin
a fullness and looseness of the flesh of the lower cheek and jaw (characteristic of aging)	a characteristic property that defines the apparent individual nature of something