gustation vs modality

gustation and modality both are nouns.

Word	Noun	Adjective	Verb	Adverb
gustation	Yes	No	No	No
modality	Yes	No	No	No

As nouns, modality is a hypernym of gustation; that is, modality is a word with a broader meaning than gustation:

gustation: the faculty of distinguishing sweet, sour, bitter, and salty properties in the mouth
modality: a particular sense

Other hypernyms of gustation include sense modality, sensory system, exteroception.

gustation (noun)	modality (noun)
the faculty of distinguishing sweet, sour, bitter, and salty properties in the mouth	a method of therapy that involves physical or electrical therapeutic treatment
	a particular sense
	a classification of propositions on the basis of whether they claim necessity or possibility or impossibility
	verb inflections that express how the action or state is conceived by the speaker