extremity vs claw

extremity and claw both are nouns.

Word	Noun	Adjective	Verb	Adverb
extremity	Yes	No	No	No
claw	Yes	No	Yes	No

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

Other hyponyms of extremity include chelicera, mouthpart, fang, chela, nipper, pincer, parapodium, fin, pleopod, swimmeret, limb, dactyl, digit.

extremity (noun)	claw (noun)
an external body part that projects from the body	sharp curved horny process on the toe of a bird or some mammals or reptiles
that part of a limb that is farthest from the torso	a bird's foot
the outermost or farthest region or point	a grasping structure on the limb of a crustacean or other arthropods
the greatest or utmost degree	a mechanical device that is curved or bent to suspend or hold or pull something
an extreme condition or state (especially of adversity or disease)

extremity (verb)	claw (verb)
	attack as if with claws
	scratch, scrape, pull, or dig with claws or nails
	clutch as if in panic
	move as if by clawing, seizing, or digging