handgrip vs appendage

handgrip and appendage both are nouns.

Word	Noun	Adjective	Verb	Adverb
handgrip	Yes	No	No	No
appendage	Yes	No	No	No

As nouns, appendage is a hypernym of handgrip; that is, appendage is a word with a broader meaning than handgrip:

handgrip: the appendage to an object that is designed to be held in order to use or move it
appendage: a part that is joined to something larger

handgrip (noun)	appendage (noun)
the appendage to an object that is designed to be held in order to use or move it	a part that is joined to something larger
	an external body part that projects from the body
	a natural prolongation or projection from a part of an organism either animal or plant