lineament vs jowl

lineament and jowl both are nouns.

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

As nouns, jowl is a hyponym of lineament; that is, jowl is a word with a more specific, narrower meaning than lineament:

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

Other hyponyms of lineament include chin, mentum, brow, forehead, temple, cheek, jaw.

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