stank vs olfactory sensation

stank and olfactory sensation both are nouns.

Word	Noun	Adjective	Verb	Adverb
stank	Yes	No	No	No
olfactory sensation	Yes	No	No	No

As nouns, olfactory sensation is a hypernym of stank; that is, olfactory sensation is a word with a broader meaning than stank:

stank: A smell of genitals or sex
olfactory sensation: the sensation that results when olfactory receptors in the nose are stimulated by particular chemicals in gaseous form

Other hypernyms of stank include odor, odour, olfactory perception, smell.

stank (noun)	olfactory sensation (noun)
A smell of genitals or sex	the sensation that results when olfactory receptors in the nose are stimulated by particular chemicals in gaseous form