halt vs forestall

halt is a noun but forestall is not a noun.

Word	Noun	Adjective	Verb	Adverb
halt	Yes	Yes	Yes	No
forestall	No	No	Yes	No

As verbs, forestall is a hypernym of halt; that is, forestall is a word with a broader meaning than halt:

Other hypernyms of halt include forbid, foreclose, preclude, prevent.

halt (noun)	forestall (noun)
an interruption or temporary suspension of progress or movement
the event of something ending
the state of inactivity following an interruption

halt (adjective)	forestall (adjective)
disabled in the feet or legs

halt (verb)	forestall (verb)
stop the flow of a liquid	act in advance of; deal with ahead of time
come to a halt, stop moving	keep from happening or arising; make impossible
cause to come to an abrupt stop
stop from happening or developing