modality vs vision

modality and vision both are nouns.

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

As nouns, vision is a hyponym of modality; that is, vision is a word with a more specific, narrower meaning than modality:

modality (noun)	vision (noun)
a method of therapy that involves physical or electrical therapeutic treatment	the ability to see; the visual faculty
a particular sense	the perceptual experience of seeing
a classification of propositions on the basis of whether they claim necessity or possibility or impossibility	a vivid mental image
verb inflections that express how the action or state is conceived by the speaker	the formation of a mental image of something that is not perceived as real and is not present to the senses
	a religious or mystical experience of a supernatural appearance