good vs staple

good and staple both are nouns.

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

As nouns, staple is a hyponym of good; that is, staple is a word with a more specific, narrower meaning than good:

good: a raw material that is sold in large quantities, usually to other businesses for manufacturing or production purposes
staple: (usually in the plural) a necessary commodity for which demand is constant

good (noun)	staple (noun)
a raw material that is sold in large quantities, usually to other businesses for manufacturing or production purposes	(usually in the plural) a necessary commodity for which demand is constant
benefit	paper fastener consisting of a short length of U-shaped wire that can fasten papers together
moral excellence or admirableness	a short U-shaped wire nail
that which is pleasing or valuable or useful	material suitable for manufacture or use or finishing
	a natural fiber (raw cotton, wool, hemp, flax) that can be twisted to form yarn

good (adjective)	staple (adjective)
having desirable or positive qualities especially those suitable for a thing specified	necessary or important, especially regarding food or commodities
morally admirable
promoting or enhancing well-being
having the normally expected amount
with or in a close or intimate relationship
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)	staple (verb)
	secure or fasten with a staple or staples

good (adverb)	staple (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')