increase vs irrupt

increase is a noun but irrupt is not a noun.

Word	Noun	Adjective	Verb	Adverb
increase	Yes	No	Yes	No
irrupt	No	No	Yes	No

As verbs, irrupt is a hyponym of increase; that is, irrupt is a word with a more specific, narrower meaning than increase:

increase (noun)	irrupt (noun)
the act of increasing something
the amount by which something increases
a change resulting in an increase
a process of becoming larger or longer or more numerous or more important
a quantity that is added

increase (verb)	irrupt (verb)
become bigger or greater in amount	increase rapidly and in an uncontrolled manner
make bigger or more	erupt or intensify suddenly
	enter uninvited