zonk out vs pass out

zonk out and pass out both are verbs.

Word	Noun	Adjective	Verb	Adverb
zonk out	No	No	Yes	No
pass out	No	No	Yes	No

As verbs, zonk out and pass out are synonyms defined as:

zonk out and pass out: lose consciousness due to a sudden trauma, for example

Other synonyms of zonk out include black out.

As verbs, pass out is a hyponym of zonk out; that is, pass out is a word with a more specific, narrower meaning than zonk out:

zonk out: lose consciousness due to a sudden trauma, for example
pass out: pass out from weakness, physical or emotional distress due to a loss of blood supply to the brain

Other hyponyms of zonk out include conk, faint, swoon.

zonk out (verb)	pass out (verb)
fall asleep fast, as when one is extremely tired	pass out from weakness, physical or emotional distress due to a loss of blood supply to the brain
lose consciousness due to a sudden trauma, for example	lose consciousness due to a sudden trauma, for example
	give to several people