conk vs predecease

conk is a noun but predecease is not a noun.

Word	Noun	Adjective	Verb	Adverb
conk	Yes	No	Yes	No
predecease	No	No	Yes	No

As verbs, predecease is a hyponym of conk; that is, predecease 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
predecease: die before; die earlier than

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

conk (noun)	predecease (noun)
informal term for the nose

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