preceding vs timing

preceding is not a noun while timing is a noun.

Word	Noun	Adjective	Verb	Adverb
preceding	No	Yes	No	No
timing	Yes	No	No	No

preceding (noun)	timing (noun)
	the regulation of occurrence, pace, or coordination to achieve a desired effect (as in music, theater, athletics, mechanics)
	the time when something happens

preceding (adjective)	timing (adjective)
existing or coming before
of a person who has held and relinquished a position or office