proviso vs provision

proviso and provision both are nouns.

Word	Noun	Adjective	Verb	Adverb
proviso	Yes	No	No	No
provision	Yes	No	Yes	No

As nouns, proviso and provision are synonyms defined as:

proviso (noun)	provision (noun)
a stipulated condition	the activity of supplying or providing something
	the cognitive process of thinking about what you will do in the event of something happening
	a stipulated condition
	a store or supply of something (especially of food or clothing or arms)

proviso (verb)	provision (verb)
	supply with provisions