provision vs irrigation

provision and irrigation both are nouns.

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

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

provision (noun)	irrigation (noun)
the activity of supplying or providing something	supplying dry land with water by means of ditches etc
the cognitive process of thinking about what you will do in the event of something happening	(medicine) cleaning a wound or body organ by flushing or washing out with water or a medicated solution
a stipulated condition
a store or supply of something (especially of food or clothing or arms)

provision (verb)	irrigation (verb)
supply with provisions