conk vs buy it

conk is a noun but buy it is not a noun.

Word	Noun	Adjective	Verb	Adverb
conk	Yes	No	Yes	No
buy it	No	No	Yes	No

As verbs, buy it is a hyponym of conk; that is, buy it is a word with a more specific, narrower meaning than conk:

conk: pass from physical life and lose all bodily attributes and functions necessary to sustain life
buy it: be killed or die

Other hyponyms of conk include abort, asphyxiate, stifle, suffocate, pip out, drown, predecease, famish, starve, fall, succumb, yield.

conk (noun)	buy it (noun)
informal term for the nose

conk (verb)	buy it (verb)
pass out from weakness, physical or emotional distress due to a loss of blood supply to the brain	be killed or die
pass from physical life and lose all bodily attributes and functions necessary to sustain life
hit, especially on the head
come to a stop