good vs secure

good is a noun but secure is not a noun.

Word	Noun	Adjective	Verb	Adverb
good	Yes	Yes	No	Yes
secure	No	Yes	Yes	No

As adjectives, good and secure are synonyms defined as:

Other synonyms of good include dependable, safe.

good (noun)	secure (noun)
a raw material that is sold in large quantities, usually to other businesses for manufacturing or production purposes
benefit
moral excellence or admirableness
that which is pleasing or valuable or useful

good (adjective)	secure (adjective)
having desirable or positive qualities especially those suitable for a thing specified	free from fear or doubt; easy in mind
morally admirable	free from danger or risk
promoting or enhancing well-being	not likely to fail or give way
having the normally expected amount	immune to attack; incapable of being tampered with
with or in a close or intimate relationship	financially safe
thorough
generally admired
resulting favorably
not left to spoil
not forged
tending to promote physical well-being; beneficial to health
in excellent physical condition
appealing to the mind
agreeable or pleasing
exerting force or influence
most suitable or right for a particular purpose
capable of pleasing
deserving of esteem and respect
of moral excellence
having or showing knowledge and skill and aptitude
financially safe

good (verb)	secure (verb)
	make certain of
	cause to be firmly attached
	fill or close tightly with or as if with a plug
	furnish with battens
	get by special effort
	assure payment of

good (adverb)	secure (adverb)
(often used as a combining form) in a good or proper or satisfactory manner or to a high standard (`good' is a nonstandard dialectal variant for `well')
completely and absolutely (`good' is sometimes used informally for `thoroughly')