limit vs confine to

limit is a noun but confine to is not a noun.

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

As verbs, limit and confine to are synonyms defined as:

Other synonyms of limit include circumscribe.

limit (noun)	confine to (noun)
the greatest possible degree of something
the boundary of a specific area
as far as something can go
the greatest amount of something that is possible or allowed
the mathematical value toward which a function goes as the independent variable approaches infinity
final or latest limiting point

limit (verb)	confine to (verb)
restrict or confine within limits	restrict or confine within limits
place limits on (extent or amount or access)
decide upon or fix definitely