limit vs hold down

limit is a noun but hold down is not a noun.

Word	Noun	Adjective	Verb	Adverb
limit	Yes	No	Yes	No
hold down	No	No	Yes	No

As verbs, hold down is a hyponym of limit; that is, hold down is a word with a more specific, narrower meaning than limit:

Other hyponyms of limit include keep down, number, cap, curb, curtail, cut back, restrict.

limit (noun)	hold down (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)	hold down (verb)
restrict or confine within limits	restrain
place limits on (extent or amount or access)	keep
decide upon or fix definitely