confine to vs decrease

confine to is not a noun while decrease is a noun.

Word	Noun	Adjective	Verb	Adverb
confine to	No	No	Yes	No
decrease	Yes	No	Yes	No

As verbs, decrease is a hypernym of confine to; that is, decrease is a word with a broader meaning than confine to:

Other hypernyms of confine to include lessen, minify.

confine to (noun)	decrease (noun)
	the act of decreasing or reducing something
	the amount by which something decreases
	a change downward
	a process of becoming smaller or shorter

confine to (verb)	decrease (verb)
restrict or confine within limits	decrease in size, extent, or range
	make become smaller