halt vs preclude

halt is a noun but preclude is not a noun.

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

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

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

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

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

halt (verb)	preclude (verb)
stop the flow of a liquid	keep from happening or arising; make impossible
come to a halt, stop moving	make impossible, especially beforehand
cause to come to an abrupt stop
stop from happening or developing