eliminate vs knock out

eliminate and knock out both are verbs.

Word	Noun	Adjective	Verb	Adverb
eliminate	No	No	Yes	No
knock out	No	No	Yes	No

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

eliminate (verb)	knock out (verb)
eliminate from the body	destroy or break forcefully
kill in large numbers	eliminate
terminate, end, or take out	empty (as of tobacco) by knocking out
remove (an unknown variable) from two or more equations	knock unconscious or senseless
dismiss from consideration or a contest	overwhelm with admiration
remove from a contest or race
get rid of something