gaol vs confine

gaol is a noun but confine is not a noun.

Word	Noun	Adjective	Verb	Adverb
gaol	Yes	No	Yes	No
confine	No	No	Yes	No

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

Other hypernyms of gaol include detain.

gaol (noun)	confine (noun)
a correctional institution used to detain persons who are in the lawful custody of the government (either accused persons awaiting trial or convicted persons serving a sentence)

gaol (verb)	confine (verb)
lock up or confine, in or as in a jail	place limits on (extent or amount or access)
	to close within bounds, or otherwise limit or deprive of free movement
	prevent from leaving or from being removed
	deprive of freedom; take into confinement
	close in