chela vs member

chela and member both are nouns.

Word	Noun	Adjective	Verb	Adverb
chela	Yes	No	No	No
member	Yes	No	No	No

As nouns, member is a hypernym of chela; that is, member is a word with a broader meaning than chela:

Other hypernyms of chela include appendage, extremity.

chela (noun)	member (noun)
a Hindu disciple of a swami	an external body part that projects from the body
a grasping structure on the limb of a crustacean or other arthropods	the male sex organ
	an organization that is a member of another organization (especially a state that belongs to a group of nations)
	one of the persons who compose a social group (especially individuals who have joined and participate in a group organization)
	anything that belongs to a set or class