saddle vs body part

saddle and body part both are nouns.

Word	Noun	Adjective	Verb	Adverb
saddle	Yes	No	Yes	No
body part	Yes	No	No	No

As nouns, body part is a hypernym of saddle; that is, body part is a word with a broader meaning than saddle:

saddle (noun)	body part (noun)
posterior part of the back of a domestic fowl	any part of an organism such as an organ or extremity
a seat for the rider of a horse or other animal
a seat for the rider of a bicycle
a piece of leather across the instep of a shoe
cut of meat (especially mutton or lamb) consisting of part of the backbone and both loins
a pass or ridge that slopes gently between two peaks (is shaped like a saddle)

saddle (verb)	body part (verb)
impose a task upon, assign a responsibility to
put a saddle on
load or burden; encumber