decrease vs increase

decrease and increase both are nouns.

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

decrease (noun)	increase (noun)
the act of decreasing or reducing something	the act of increasing something
the amount by which something decreases	the amount by which something increases
a change downward	a change resulting in an increase
a process of becoming smaller or shorter	a process of becoming larger or longer or more numerous or more important
	a quantity that is added

decrease (verb)	increase (verb)
decrease in size, extent, or range	become bigger or greater in amount
make become smaller	make bigger or more