medical specialty vs irrigation

medical specialty and irrigation both are nouns.

Word	Noun	Adjective	Verb	Adverb
medical specialty	Yes	No	No	No
irrigation	Yes	No	No	No

medical specialty (noun)	irrigation (noun)
the branches of medical science that deal with nonsurgical techniques	supplying dry land with water by means of ditches etc
	(medicine) cleaning a wound or body organ by flushing or washing out with water or a medicated solution