provision vs proviso

provision and proviso both are nouns.

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

As nouns, provision and proviso are synonyms defined as:

provision (noun)	proviso (noun)
the activity of supplying or providing something	a stipulated condition
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)

provision (verb)	proviso (verb)
supply with provisions