precede vs predecessor

precede is not a noun while predecessor is a noun.

Word	Noun	Adjective	Verb	Adverb
precede	No	No	Yes	No
predecessor	Yes	No	No	No

precede (noun)	predecessor (noun)
	something that precedes and indicates the approach of something or someone
	one who precedes you in time (as in holding a position or office)

precede (verb)	predecessor (verb)
furnish with a preface or introduction
move ahead (of others) in time or space
be the predecessor of
be earlier in time; go back further
come before