tanning vs bodily function

tanning and bodily function both are nouns.

Word	Noun	Adjective	Verb	Adverb
tanning	Yes	No	No	No
bodily function	Yes	No	No	No

As nouns, bodily function is a hypernym of tanning; that is, bodily function is a word with a broader meaning than tanning:

tanning: process in which skin pigmentation darkens as a result of exposure to ultraviolet light
bodily function: an organic process that takes place in the body

Other hypernyms of tanning include activity, bodily process, body process.

tanning (noun)	bodily function (noun)
making leather from rawhide	an organic process that takes place in the body
beating with a whip or strap or rope as a form of punishment
process in which skin pigmentation darkens as a result of exposure to ultraviolet light