halt vs stay

halt and stay both are nouns.

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

As nouns, halt and stay are synonyms defined as:

Other synonyms of halt include arrest, check, hitch, stop, stoppage.

As verbs, stay is a hyponym of halt; that is, stay is a word with a more specific, narrower meaning than halt:

Other hyponyms of halt include embargo.

halt (noun)	stay (noun)
an interruption or temporary suspension of progress or movement	continuing or remaining in a place or state
the event of something ending	(nautical) brace consisting of a heavy rope or wire cable used as a support for a mast or spar
the state of inactivity following an interruption	a thin strip of metal or bone that is used to stiffen a garment (e.g. a corset)
	a judicial order forbidding some action until an event occurs or the order is lifted
	the state of inactivity following an interruption

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

halt (verb)	stay (verb)
stop the flow of a liquid	stay the same; remain in a certain state
come to a halt, stop moving	stop or halt
cause to come to an abrupt stop	overcome or allay
stop from happening or developing	fasten with stays
	be in a certain place and not leave
	stop a judicial process
	dwell
	continue in a place, position, or situation
	hang on during a trial of endurance