modality vs modal

modality and modal both are nouns.

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

modality (noun)	modal (noun)
a method of therapy that involves physical or electrical therapeutic treatment	an auxiliary verb (such as `can' or `will') that is used to express modality
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

modality (adjective)	modal (adjective)
	relating to or expressing the mood of a verb
	of or relating to a musical mode; especially written in an ecclesiastical mode
	relating to or constituting the most frequent value in a distribution